Synthchaser #119 – ARP Axxe Voltage Controlled Filter Repair

Published on May 11, 2019 Synth Chaser

“While restoring this ARP Axxe I found that the voltage controlled filter wasn’t working right–it wasn’t filtering anything! In this video we put the filter into my ARP Filter test fixture and track down the problem using the schematics.

Parts, service and synthesizers available on my website.”

synthpro with The Schmidt Coming to Superbooth19

Published on Apr 24, 2019 synthpro

“Hey Guys,

Just a quick video to announce that I will be at Superbooth 2019 this year with the Schmidt synthesizer team.

Really look forward to meeting some of you.”

AE#82 Radio Shack Model 1 Voice Synthesizer Repair And Teardown

Published on Apr 15, 2019 Artifact Electronics

Demo comes in after 20 minutes. Funny how he has a conversation with it.

“Here we have a vintage Model 1 voice synthesizer. It worked for all of 10 minutes after I received it and then promptly started to malfunction. It gets repaired and then shows off it’s gift of gab.”

Also see: How Speech Synthesizers Work

Synthchaser #118 – Rhodes Chroma Repair & Restoration Part 3 – MIDI, Programmer & Demo Sounds

Published on Apr 15, 2019 Synth Chaser

“In the last part of this series, we repaired the power supply & recapped this lovely Rhodes Chroma. Today I show you some of the upgrades I made to the Rhodes Chroma, and we have a listen to some of the many sounds the Chroma is capable of.

My usual disclaimer: none of the sample sounds played are intended to be musical, I am not demonstrating my musical

Synthchaser #117 – Rhodes Chroma Repair & Restoration Part 2 – Power Supply & Recapping

Published on Apr 9, 2019 Synth Chaser

“In the last Rhodes Chroma video we figured out why this synthesizer wouldn’t work. In this video, we make the repair to the power supply as well as recap the synth and clean up some corrosion on the CPU board.”

Synthchaser Rhodes Chroma Repair

Synthchaser #116 – ARP Synthesizer Mains Power Wiring Explanation & 240V Conversion

Published on Mar 31, 2019 Synth Chaser

“Before this Omni gets shipped off to the UK, I explain the mains wiring and show how to convert an ARP from 120V to 240V operation.

You will learn why the lamp on the power switch is meaningless as a diagnostic indicator, as well as where there is a dangerous wire that is color coded neutral but is actually hot mains level.


Synthchaser #115 – ARP Voltage Controlled Filter Tester

Published on Mar 17, 2019 Synth Chaser

Custom Desktop Sequential Circuits Pro One in Wooden Case

via this auction

Curious if it’s just resting in the case.

via this listing: “Yes you are reading this right. The only Pro-One modded to desktop version I have ever seen! Mod wheel control via CV in on the back 🙂 This was recently services, tuned and PSU rebuilt by mr SynthNerd himself here in Dublin..”

Synth tech in Dublin for those that need one.

AE#79 Moog Sonic Six Synthesizer Repair And Checkout, Part 1

Published on Mar 8, 2019 Artifact Electronics

“Today we have a look at my new Moog Sonic Six which is non-functional except for the power light and some random noise. We get it up and running.”