Downloads

In 1989 I designed a range of amplifiers for my old friend Mike Harris at Moth Marketing. The range comprised a Passive Control Unit; an active MC/MM Pre-Amplifier; a Stereo 30 watt Power Amplifier; a Mono 40 watt amplifier and a Mono 100 watt amplifier. These products got good reviews in their day and only recently ceased production. The photos below show a Moth MC/MM Pre-Amplifier.

It has previously been very difficult to get the circuits of these products so I've added them to this site together with a few other downloads that might interest particular visitors

Downloads <click on the logo to download>

Circuit Schematic for Moth 30 Series Active Pre Amplifier Main Board

Circuit Schematic for Moth 30 Series Active Pre Amplifier Sub-Boards

Circuit Schematic for Moth 30 Series Stereo Power Amplifier (30 watts per channel)

Circuit Schematic for Moth 100 Series Mono Power Amplifier (100 watts) Sheet 1

Circuit Schematic for Moth 100 Series Mono Power Amplifier (100 watts) Sheet 2

Service Manual for the Compton Melotone Organ. An innovative British organ of the 1950s which generated its tones from capacitive discs rotated by a motor. This is a big 11 Mb file so it will take a moment or two to download. An introduction to Compton's can be got by visiting:

http://uk.msnusers.com/ComptonMelotonesandElectrostaticOrgans/introduction.msnw

News item about the Moth 30 Series of amplifiers from "High Fidelity" magazine February 1990

 

Review of the Moth 30 Series by Richard Black in "Hi-Fi News & Record Review" magazine in June 1990

 

Review of the Moth 30 Series by Graham Mayor in "CD Review" magazine in 1990

 

 
 
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Stan Curtis the hi-fi guru - HiFi Choice - HiFi Critic - columnist - magazine articles -