Mitch's Korg 700 Repair (by synthpro)

video by synthpro

"Hey Guys,

this is a video I made for Mitch going over his Mini-Korg. I thought some of you may appreciate seeing a review of this synth as well."

Steve's Eminent/Arp Solinas (by synthpro)

video by synthpro

"Hey Guys,

This is a look at the latest two projects I have been working on for Steve.
Once of these units were extremely rusty so sandblasted it and repainted the interface parts. There was also a broken key stop and had been replaced with a stop that was too short to adjust key height as well as would not hold a key bushing. I had a donor polymoog key stop I installed and was able to align key and install all new key bushings.

Bottom unit got a good electronic servicing as well as a keyboard rebuild with new key bushings but cosmetically, it will just be getting a good cleaning.

Here is a link for those that may have missed the video going over the guts:" [posted here]

What's Inside The Eminent/Arp Solina String Ensemble (by synthpro)

video by synthpro

"Hey guys,

This is a video going over the functionality of the Eminent/ Arp Solina with a look at the guts.

This particular unit is build series 64 for those interested. The earlier units did not have the modulation bypass switch for Chorus effect.

Thanks for watching!

Sincerely,
Jareth"

Moog Polymoog 203a

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"Brand new from Synthpro, Works as new.

Sounds beautiful"

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Minimoog History 1971-1981 (by synthpro)

synthpro

"Hey Guys,

Today, I thought I would take a little time to document some of the changes across the minimoog production from 1971-1980.

Serial #s reviewed is as follows:

R.A Moog SN: 1037 built 3/71
Early Moog Music SN 1548 Built 6/8/72
Moog Music SN 6768 Built 1/29/75
Late Moog Music SN 13061 Build date unknown

Here is the link for the musonics minimoog: [posted here]

I did forget to finish explaing the Pitch/Mod Wheel changes:
3/1971- 7/1972 used the clear wheels

7/ 1972-1973 used the blocky white wheels, (here is a video explaing these style wheels: [Alan's below]

1974-1/1975 used the smooth edged cream wheels

1975-1981 used the ribbed wheels found on most moog models

1982 went back to clear wheels as a special edition run


Thanks for watching, and for the support!

Sincerely,
Jareth"

Alan's 72 Minimoog Restore (by synthpro)
synthpro

"Hey Guys,

This is a video going over Alan's 72 minimoog and pointing out some design changes that happened within a months period between June 8th 1972 to July 14th 1972

Thanks again Alan, was a pleasure getting this minimoog back into good health for you.

Thanks to all that watch my videos as well!!!

Sincerely,
Jareth"

Herb Deutsch's Moog SOB Part 2 (by Synthpro)

Part 2 added here.

Alan's Roland System 100 model 104 sequencer repair (by synthpro)

synthpro

A peak inside a Roland System 100 model 104 sequencer.

"This is a personal video I made for Alan going over some diagnostics of his sequencer but figured some of you may enjoy this as well. issues were that it would not sequence and no gate switching. This was new territory for me so was unfamiliar with normal operation clock DC voltages/pk to pk voltage.

to sum up the repair:

The output of the pulse width circuit goes into the Anode (positive side of the diode) D205 and with the negative DC offset out of the pulse width circuit; it would not turn the diode on causing all the problem."

Herb Deutsch's Moog SOB (by Synthpro)

synthpro

"Hey Guys,

Here is a little different video for all of you going over Herb's Moog SOB (better known as the Opus 3) and the history of this particular instrument released by moog back in the 80s.

Herb was involved in the design of the Opus 3 and I am very honored to have the opportunity to work on his actual instrument.

(Note: when showing the Chorus schematics I did forget to address that the 2 LFOs are modulating at 20Hz and a 2Hz signal...this is also how you get slow/fast rate based off which LFO is selected. These LFOs are actually modulating the clocking oscillator running at roughly 300kHz to clock the SAD512s....this is that circuit behind where I talk about the sine wave conversion)

Thanks again Herb and to all of you who watch my videos.

Sincerely,
Jareth"

Herb Deutsch's Moog SOB Part 2 (by Synthpro)


"This is the second/final part of the series on Herb's SOB (Opus 3).

This this video, I go over more in depth of the chorus after repairs and a good overview of the features of this instrument to show its 100% working.

Thanks again Herb and to all of you who watch, I greatly appreciate the support.

Jareth"

Moog Opus 3 Restore for Charles (by synthpro)

synthpro

synthpro's DSI Poly Evolver (For Sale)

Note: Auction links are affiliate links for which the site may be compensated.
synthpro

via this auction

"This is my much loved Poly Evolver that is for sale. I am cleaning house of some of the gear I have collected over the years and its time to send them on their way to another musician.

Note: I am NOT getting out of the synth restoration business nor am I getting rid of my shop...I may be moving out of the house where I live into something smaller so thats the reason for the sale of this gear.

Appreciate all the support and will definitely be more restorations and other videos to come.

Sincerely,
Jareth"

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Frank's Polymoog Restore ( by synthpro)

synthpro

Roland Jupiter-8

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"This is an early 12 bit unit, pre DCB, serial number xxx949...

Diagnostics and repair performed by Jareth Lackey of Synthpro Restorations, LLC.

Service included repair of an oscillator that wouldn’t track, a wave shape circuit repair, replacement of two op amps, five interface buttons, oscillator sync switch , one broken key, and the save battery which was recently replaced on a separate trip to Synthpro.

Recently gone through, every function works as they should, and the factory presets were restored due to the battery replacement

The bottom of E4 key is chipped, shown in pictures, and the pulse width modulation slider wiggles loose, also shown in pictures. The slider must be stabilized when using. Despite this, it has a smooth reaction, and is not a wiper or carbon track issue but a broken actuator. It works as it should otherwise.

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Alan's Moog/Realistic MG-1 (by Synthpro)

Published on Jun 5, 2020 synthpro

"Hey Guys,

Another MG-1 that got some TLC here at synthpro Restorations, LLC
Added some mods to give this unit a deeper sound and allow features to have a bit more range.

Thanks again Alan and to all of you who watch and support my business.

Sincerely,
Jareth"

Eric's Memorymoog Restoration (by Synthpro)

Published on Apr 9, 2020 synthpro

Factory preset demos come in at 13:25.

"Hey Guys,

This is a video going over Eric's Memorymoog I have been restoring.

Here is a link to the fan kit I installed in this unit:
https://www.rosensound.com/product/me...

Thanks Eric and to all of you watching. Stay safe out there during this crazy time.

Sincerely,
Jareth"

Gainstage Resistor on Moog Realistic MG-1 Affects Classic Moog Tone?

Keith's Moog/Realisitc MG-1 Restore (by synthpro) Published on Mar 12, 2020 synthpro

Note what he says at 1:41. Thought that was interesting.

"Hey Guys,

This is a video going over the Realistic MG-1 which was built by moog music inc. for Tandy/Radio Shack back in the 80s.

Thanks again Keith and to all of you who watch my videos, greatly appreciate it!!

Sincerely,
Jareth"

Kyle's Multimoog Restore/Modifications (By Synthpro)

Published on Feb 26, 2020 synthpro

"Hey Guys,
This is a video going over the Multimoog I restored for Kyle along with diagnostics and functions of the added modifications.

Thanks for watching and all the support!

Sincerely,
Jareth"

Carl's Polymoog 203a Restore (by Synthpro)

Published on Feb 6, 2020 synthpro

"Hi Guys,

This is a in depth video going over a polymoog 203a I restored for Carl.

Thanks again Carl and to all of you that watch my videos, i greatly appreciate the support!

Sincerely,
Jareth"

Moog Micromoog Synthpro Serviced SN 7691

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

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Freddy's Musonics Minimoog Restore (by synthpro)

Published on Dec 3, 2019 synthpro

"Hey Guys,

This is a video I made of a musonics minimoog I restored for Freddy.

This minimoog was built 12/29/1971 and is the 240th unit built, it was a real treat bringing this one back from the grave and its a fine example of a Musonics era minimoog.

Here is a link to the instagram video I mention: https://www.instagram.com/p/B5MU87ohlxR/

Thanks for watching, I greatly appreciate all the support!

sincerely,
Jareth"

Jim's Korg 770 Service (by Synthpro)

Published on Sep 30, 2019 synthpro

"This is a video I made going over a Korg 770 I have been servicing for Jim.

This little synth was manufactured August 1977 and has a very unique tone."