Wireless Microphone Transmitter

This quality FM transmitter set provides plug in power and can be used to transmit audio from any Cold Gold mono condenser mic products, passive piezo contact microphones or hydrophones. Transmits up to 100 feet under ideal conditions. Comes with electret lapel mic (not pictured), volume control and belt clip. Requires one AAA and one 9 volt battery (included). Compact-sized transmitter has a female mono 1/8" input jack, and receiver has a male mono 1/4" output that can be plugged directly into a guitar amp. (Contact mic pictured not included).

$50 USD each

Insured airmail shipping for this item to anywhere: $10 US

Condenser Hydrophone

Tiny but tough, this active condenser hydrophone is great for all kinds of underwater listening and recording. Made with shielded, waterproof cable and a high quality metal output plug. The microphone element is shielded and encased in clear, marine-grade silicone. This hydrophone is low noise and high sensitivity with a frequency response range of approx. 20 - 20 000 Hz, and impedance of approx. 600 Ohms. Requires 1.5 - 9 volt plug in power. If unspecified, standard model comes with a mono 1/8" male output.

5' - $60 USD each //\\ 10' - $65 USD each //\\ 25' - $80 USD each

Insured airmail shipping for this item to anywhere: $10 US

Binaural Condenser Microphone Set

Each omnidirectional mic capsule is fitted with a metal alligator clip which can be attached on either side of your head (to a baseball cap brim, headphone arms, glasses, headbands, earmuffs, etc.). You don't have to use these mics on your head, they can be configured any way you see fit to obtain unique stereo recordings. Frequency response range of 20 - 20 000 Hz.

Made with high grade shielded black cable and a high quality metal stereo mini (1/8") male output. Mic capsule backs are filled with clear silicone and protected with clear shrinktube. Requires plug in power. Rainy Night in Vancouver, recorded with a Binaural Condenser Mic Set

5' - $90 USD each //\\ 10' - $95 USD each

Insured airmail shipping for this item to anywhere: $10 US

Buffered XLR Contact Microphone

A classic brass piezo contact microphone optimized with electronics. This mono mic requires standard 48v phantom power and terminates in a high quality male 3-pin XLR output. The low noise preamp built right into the piezo head lowers the impedance and provides 3dB of amplification giving you a louder, wider, more natural sounding frequency response. Made with 1/8" thick crystal clear shielded audio cable and 27mm brass piezo head backed with glittery silver or gold polyethylene. Lightweight, durable and moisture resistant. Unbalanced.

5' - $65 USD each //\\ 10' - $70 USD each (weight: 100g) //\\ 25' - $85 USD each

Insured airmail shipping for this item to anywhere: $10 US

Buffered XLR Contact Microphone with Alligator Clip

A classic brass piezo contact microphone optimized with electronics and equipped with a strong metal alligator clip. This mono mic requires standard 48v phantom power and terminates in a high quality male 3-pin XLR output. The low noise preamp built right into the piezo head lowers the impedance and provides 3dB of amplification giving you a louder, wider, more natural sounding frequency response. Made with 1/8" thick crystal clear shielded audio cable and 27mm brass piezo head backed with glittery silver or gold polyethylene. Lightweight, durable and moisture resistant. Unbalanced.

5' - $75 USD each //\\ 10' - $80 USD each (weight: 100g) //\\ 25' - $95 USD each

Insured airmail shipping for this item to anywhere: $10 US

Basic Contact Microphone

Passive brass piezo mono contact microphone with high quality 1/4" male output plug. Made with 1/8" thick crystal clear shielded audio cable and 27mm brass piezo head backed with glittery silver or gold polyethylene. Lightweight, durable and moisture resistant. Great for noise enthusiasts or for miking musical instruments. Can be made with a miniplug upon request.

5' - $25 USD each //\\ 10' - $30 USD each //\\ 25' - $45 USD each

Add $1 for dual-mono.

Insured airmail shipping for this item to anywhere: $10 US

Basic Contact Microphone with Alligator Clip

Passive brass piezo mono contact microphone with high quality 1/4" male output plug. Made with 1/8" thick crystal clear shielded audio cable and 27mm brass piezo head backed with glittery silver or gold polyethylene. Soldered onto the disc is a small alligator clip that can open its jaws approximately 0.25 inches wide. Originally designed for collecting sounds from wires, bridges and chain link fences. Lightweight, durable and moisture resistant. Great for noise enthusiasts or for miking musical instruments. Can be made with a miniplug upon request.

5' - $35 USD each //\\ 10' - $40 USD each //\\ 25' - $55 USD each

Add $1 for dual-mono.

Insured airmail shipping for this item to anywhere: $10 US

Basic Contact Microphone - 1/4" Stereo Set

This stereo set comes with two 1/4" mono male phone plugs and can be used as is or pulled apart to make two mono mics. Made with 1/8" thick crystal clear shielded audio cable and 27mm brass piezo head backed with glittery silver or gold polyethylene. Lightweight, durable and moisture resistant. Pull it apart and you have two mono contact microphones. Great for noise enthusiasts or miking musical instruments. Single stereo 1/4" plug available upon request.

5' - $45 USD each //\\ 10' - $50 USD each //\\ 25' - $75 USD each

Insured airmail shipping for this item to anywhere: $10 US (extra for 25 footer)

Basic Contact Microphone - Mini Stereo Set

This stereo set is made with 27mm passive brass piezo heads and terminates in a high quality stereo 1/8" output. Made with high quality black shielded audio cable. Mic heads are backed with glittery silver or gold polyethylene. Lightweight, durable and moisture resistant. Excellent for MiniDisc field recording.

5' - $45 USD each //\\ 10' - $55 USD each

Insured airmail shipping for this item to anywhere: $10 US

Basic Contact Microphone - Mini Stereo Set with Alligator Clips

This stereo set is made with 27mm passive brass piezo heads with two strong metal alligator clips attached. Terminates in a high quality stereo male 1/8" output. Made with high quality black shielded audio cable. Mic heads are backed with glittery silver or gold polyethylene and clips are soldered to the brass. Lightweight, durable and moisture resistant. Excellent for MiniDisc field recording.

5' - $60 USD each //\\ 10' - $70 USD each

Insured airmail shipping for this item to anywhere: $10 US

Basic Contact Microphone - Stereo RCA Set

The most economical contact mic you can buy. This stereo set is made with 27mm brass piezo heads and terminates in two RCA male plugs. Can be easily peeled apart to make two mono mics. Don't be fooled by the price, these mics have excellent sound! Plug colors may vary.

6 Foot RCA Stereo Set - $25 USD each

Insured airmail shipping for this item to anywhere: $10 US (for up to 4 sets)

Silicone Suction Cup Microphone - Mini

This specialty microphone is made with a medical grade grey silicone suction cup that can stay attached to slick smooth surfaces for days! It's also ideal for sticking to the body for the collection of heartbeats, lung sounds, etc. Works best when used with a high impedance amplifier and/or preamp. This suction cup is approximately 1.5 inches wide with a 20mm brass piezo sensor element secured inside the cup with clear silicone. Made with a male mono 1/4" output plug, 1/8" mono output plug, or male mono XLR out upon request. If unspecified, stock mic comes with 1/4" out.

10' - $55 USD each //\\ 25' - $70 USD each

Insured airmail shipping for this item to anywhere: $10 US

Silicone Suction Cup Microphone - Medium

This specialty microphone is made with a medical grade grey silicone suction cup that can stay attached to slick smooth surfaces for days! More robust than the mini suction cup mic, it's also ideal for sticking to the body for the collection of heartbeats, lung sounds, etc. Works best when used with a high impedance amplifier and/or preamp. This suction cup is approximately 2.75 inches wide with a 27mm brass piezo sensor element secured inside the cup with clear silicone. Made with a male mono 1/4" output plug, 1/8" mono output plug, or male mono XLR out upon request. If unspecified, stock mic comes with 1/4" out.

10' - $48 USD each //\\ 25' - $63 USD each

Insured airmail shipping for this item to anywhere: $10 US

PVDF Piezo Cable Contact Microphone

Made from 3mm thick piezoelectric cable covered with a black plastic jacket. The standard version of this microphone comes with 5 inches of piezo cable attached with a strong shielded join to the end of matching black shielded cable with a male 1/4" mono phone output. This is a passive piezo mic which benefits a lot from a piezo preamp but will also work well with a guitar amp. This mic will also fit most bridge slots. Please specify 1/4" or 1/8" mono output.

This mic is good for getting into tight spots, but the sound you get out of it will depend a lot on how well it contacts the vibratory surface. Works best when wedged tightly or glued down. Great for noise enthusiasts.

5' - $45 USD each //\\ 10' - $50 USD each

Insured airmail shipping for this item to anywhere: $10 US (for up to 2 microphones)

PVDF Film Tab Contact Microphone

This microphone is made from a small flexible piezo film tab which has been fully shielded with copper tape and coated with white or black Plasti-Dip, attached to clear, shielded audio cable and terminated with a 1/4" male mono phone plug.

The head measures approximately 1.75" by 0.5". This microphone works best when wedged into tight places or glued down. Use with a piezo preamp for best results.

5' - $43 USD each //\\ 10' - $48 USD each

Insured airmail shipping for this item to anywhere: $10 US (for up to 2 microphones)

Factory-Shielded Piezo Film Tab Contact Microphone

This little PVDF film tab has been fold-shielded at the factory so the bare surface of the film can be put into direct contact with your sound source. This makes it a much more sensitive film tab mic that still needs to be properly attached to a surface to sound good. Comes with 17 inches of cable and 1/4 inch male mono phone output plug. More delicate than the regular film tab microphone. Excellent for under-bridge placement on violin, bass and cello.

$50 USD each

Insured airmail shipping for this item to anywhere: $10 US (for up to 2 microphones)

Large PVDF Film Tab Internal Pickup

A large 6 inch by approximately 0.75 inch film tab mic, fully shielded with copper tape and hooked up with 17 inches of shielded black cable to a female 0.25 inch panel mount mono phone jack. To get the most out of this microphone the entire length of the film tab needs to be securely attached to the vibratory surface. Use with a piezo preamp for best results. Use caution when handling, copper edges are sharp. Can also be made with a 1/4" or 1/8" male output plug upon request.

$50 USD each

Insured airmail shipping for this item to anywhere: $10 US (for up to 2 microphones)

Double PVDF Film Tab Internal Pickup

Two 1 inch by 1/2 inch flexible film tabs, fully shielded with copper tape and hooked up with 14 inches of shielded black cable to a female 1/4 inch panel mount mono phone jack. Perfect for miking two distinct areas. Use with a piezo preamp for best results. Can also be used as an under-bridge pickup for bass and cello. Use caution when handling, copper edges are sharp. Can also be made with a 1/4" or 1/8" male output plug upon request.

$50 USD each

Insured airmail shipping for this item to anywhere: $10 US (for up to 2 microphones)

Buffered XLR Hydrophone

A double brass piezo hydrophone optimized with electronics. This mono mic requires standard 48v phantom power and terminates in a high quality male 3-pin XLR output. The low noise preamp built right into the piezo head lowers the impedance and provides 3dB of amplification giving you a louder, wider, more natural sounding frequency response. Made with 1/8" thick crystal clear shielded audio cable. Lightweight, durable and waterproof. Not for use with very hot liquids for extended periods. Unbalanced.

5' - $80 USD each //\\ 10' - $85 USD each //\\ 25' - $100 USD each

Insured airmail shipping for this item to anywhere: $10 US

Basic Mono Hydrophone

This passive hydrophone is made with shielded clear cable and a 27mm double brass piezo head coated in non-toxic white rubber. Standard model comes with a male mono 1/4 inch output plug. Can be used for all kinds of underwater listening and recording, including detecting swimming pool leaks.

5' - $45 USD each (black coating) //\\ 10' - $50 USD each //\\ 25' - $65 USD each

Insured airmail shipping for this item to anywhere: $10 US

Basic Stereo Hydrophone

This true stereo, passive hydrophone is made with shielded black cable, 27mm double brass piezo head coated in black non-toxic rubber, and stereo mini male (1/8 inch) output plug. Can be used for all kinds of underwater listening and recording, including detecting swimming pool leaks.

5' - $50 USD each //\\ 10' - $55 USD each //\\ 25' - $70 USD each

Insured airmail shipping for this item to anywhere: $10 US

27mm Brass Piezo Discs

These are the piezos I primarily use for my mics. They have an excellent frequency response that ranges from about 20 HZ up into the ultrasonic range. Because they're built with a brass resonating disc, they have a degree of self-resonance that produces a louder, if sometimes 'tinny' sounding signal which can be improved by damping. Make your own contact mics, drum triggers, speakers, switches, buzzers, transducers...

$1 Each , 10 for $9, 50 for $40, or 100 for $70 USD

Lettermail shipping available (uninsured) : $1 within Canada, $2 Internationally (50 to 100 discs - $10 Shipping)

20mm Small Brass Piezo Discs

Same as above but smaller, slightly beefier discs that can be used to make your own contact mics, drum triggers, speakers, switches, buzzers, transducers...

$1 Each , 10 for $9, 50 for $40, or 100 for $70 USD

Lettermail shipping available (uninsured) : $1 within Canada, $2 Internationally (50 to 100 discs - $10 US)

Small PVDF Piezo Film Tabs

These 1 inch by 1/2 inch flexible fluoropolymer film tabs have two metal pins for soldering to connections of your choice. These film tabs usually need to be shielded to reduce hum. They have a vast frequency response range in excess of 0.001 HZ to over 1 billion HZ.

To download a PDF version of the complete technical manual for PVDF film, please click here.

$2.50 USD each or 10 for $20 USD

Lettermail shipping available (uninsured) : $1 within Canada, $2 Internationally (insured shipping - $10 US)

Self-Adhesive Copper Shielding Tape - 23mm Wide

23mm wide and sold by the foot, this is the tape used to shield piezos, a must for film tab microphones, guitar and bass pickup cavities, electronics, etc. Easy to solder to, with one side coated with a strong conductive adhesive. It's sharp, so use caution when handling.

Copper tape will be be packaged by folding into sections to fit into envelopes, so expect a few neat creases which can be smoothed out later with a bone folder or fingernail.

$2 USD per foot

Lettermail shipping available (uninsured) : $1 within Canada, $2 Internationally (insured shipping - $10 US)

Self-Adhesive Copper Shielding Tape - 60mm Wide

60mm wide and sold by the foot, this is the tape used to shield piezos, a must for film tab microphones, guitar and bass pickup cavities, electronics, etc. Easy to solder to, with one side coated with a strong conductive adhesive. It's sharp, so use caution when handling.

Copper tape will be be packaged by folding into sections to fit into envelopes, so expect a few neat creases which can be smoothed out later with a bone folder or fingernail.

$3 USD per foot

Lettermail shipping available (uninsured) : $1 within Canada, $2 Internationally (insured shipping - $10 US)

Double RCA to Stereo Mini (1/8") Adaptor

This is a high quality adaptor that can be used to add versatility to your stereo RCA contact mic set. Shipped for free (up to 3 adaptors) when purchased at the same time as microphones.

$4 USD each

Lettermail shipping available (uninsured) : $2 within Canada, $4 Internationally (insured shipping - $10 US)

Mono 1/4" Female to Mini 1/8" Male Adaptor

This is a high quality, all metal silver adaptor that can be used to add versatility to your microphones. Shipped for free (up to 3 adaptors) when purchased at the same time as microphones.

$4 USD each

Lettermail shipping available (uninsured) : $2 within Canada, $4 Internationally (insured shipping - $10 US)

Mono Mini 1/8" Female to 1/4" Male Adaptor

This is a high quality, all metal silver adaptor that can be used to add versatility to your microphones. Shipped for free (up to 3 adaptors) when purchased at the same time as microphones.

$4 USD each

Lettermail shipping available (uninsured) : $2 within Canada, $4 Internationally (insured shipping - $10 US)