Search found 42 matches

by electrojoe
Mon Dec 05, 2016 12:43 am
Forum: Moog Music General Topics Forum
Topic: MemoryMoog latest firmware for non-plus
Replies: 12
Views: 6289

Re: MemoryMoog latest firmware for non-plus

Hello Memory Moog users, As much as I always like and learn from MC's input on things, I need to correct his info here. The auto tune update was designed to update the NON-Plus Memory Moog. The Memory Moog was release with version 1.4 and was installed on 3-2532 ROM chips. Shortly after that was ver...
by electrojoe
Fri May 06, 2016 4:28 pm
Forum: Moog Music General Topics Forum
Topic: MG1 Part needed
Replies: 4
Views: 2070

Re: MG1 Part needed

Thanks for the reply's, I have tried a standard 100 ohm resistor, but the scale continues to change as the resistor can't adjust with the 3046 heat. As for sliders, This unit had the sliders replaced already. Rather poorly, I had 2 issues due to poor installation. I am pretty good at cleaning those,...
by electrojoe
Wed May 04, 2016 2:45 pm
Forum: Moog Music General Topics Forum
Topic: MG1 Part needed
Replies: 4
Views: 2070

MG1 Part needed

Hello,
I am in need of the only un-obtainium part in the Moog MG1.
I am looking for a 100 ohm Tempco resistor.
One of them has gone out and the 1st oscillator will not stabilize.

Anyone have one, or know of a simple work around?

Thanks.

electrojoe
by electrojoe
Fri Feb 05, 2016 2:22 am
Forum: Moog Music General Topics Forum
Topic: Memorymoog Power Supply woes (solved)
Replies: 41
Views: 14276

Re: Memorymoog Power Supply woes

Hello, O.K., Sounds like you may need to double check the polarity on the Caps. You may have one backwards and that's what is cooking, and now that you have a hum, that's the first thing I would check. Also when measuring current you need to run your Amp meter in series with the power rail you are t...
by electrojoe
Sun Jan 31, 2016 12:19 pm
Forum: Moog Music General Topics Forum
Topic: Memorymoog Power Supply woes (solved)
Replies: 41
Views: 14276

Re: Memorymoog Power Supply woes

Hello, Double check that you have all of the transistors secured to the heat sink. If all of that looks good, you may have to look at the current draw for each rail to see where the excess current is coming from, causing heat generation. Once you identify the extra current draw, you will need to foc...
by electrojoe
Thu Jan 28, 2016 4:47 pm
Forum: Moog Music General Topics Forum
Topic: Memorymoog Power Supply woes (solved)
Replies: 41
Views: 14276

Re: Memorymoog Power Supply woes

Hey,
Your right, they are both labeled C4 in the Schematic, (those norlin folks, huh?!).

Yes, the +15 raw voltage is sent to the 723 IC in the 5 volt section to provide power for that IC, if it is not there, the +5 volt section will not power up.

Gerry
by electrojoe
Thu Jan 28, 2016 4:33 pm
Forum: Moog Music General Topics Forum
Topic: Memorymoog Power Supply woes (solved)
Replies: 41
Views: 14276

Re: Memorymoog Power Supply woes

Hi Guys, The polymoog had 2 different versions of the power supply, but the memorymoog only had the one version, which is a modified version of the final version of the polymoog power supply, hence the incorrect pin numbering. In the schematic, there is 1 connection coming from the + connection of C...
by electrojoe
Thu Jan 28, 2016 3:58 pm
Forum: Moog Music General Topics Forum
Topic: Memorymoog Power Supply woes (solved)
Replies: 41
Views: 14276

Re: Memorymoog Power Supply woes

Oh, and please be careful!
Double check everything.

Gerry
by electrojoe
Thu Jan 28, 2016 3:56 pm
Forum: Moog Music General Topics Forum
Topic: Memorymoog Power Supply woes (solved)
Replies: 41
Views: 14276

Re: Memorymoog Power Supply woes

O.K. First, you need to have the +15 volt power section active, because, the 5 volt regulator gets it’s power from the +15 volt supply. Second you need to connect the sensing lines for all voltages. So for best test results, connect all 3 AC power connectors. Using the pin numbering I suggested earl...
by electrojoe
Thu Jan 28, 2016 10:32 am
Forum: Moog Music General Topics Forum
Topic: Memorymoog Power Supply woes (solved)
Replies: 41
Views: 14276

Re: Memorymoog Power Supply woes

Hi Guys, Be careful here as the power supply markings are mislabeled. The pin number on the physical power supply circuit board is INCORRECT. Refer to the power supply schematic for the correct pin numbering. For reference, if you are looking at the power supply with the connector end towards you an...
by electrojoe
Sun Jul 20, 2014 10:56 pm
Forum: Moog Music General Topics Forum
Topic: Favorite synth solos!!
Replies: 88
Views: 100709

Re: Favorite synth solos!!

One of favorite Minimoog solos is from Starbuck.
The band that used several minis in it.

The song is an instrument called Bordello Bordeaux and can be heard at https://www.youtube.com/watch?v=zlEWWuYeZ_c

Lots of xylophone and minimoog.

The solo starts at 3:35

Enjoy!!

Gerry
by electrojoe
Wed Jul 16, 2014 12:20 am
Forum: Moog Music General Topics Forum
Topic: RIP Kevin Lightner/Synthfool
Replies: 38
Views: 19746

Re: RIP Kevin Lightner/Synthfool

Kevin will be missed indeed!
Kevin has always been a wonderful asset to the analog synth community.
RIP, and my condolences to Kevins family.

Gerry Dahl
by electrojoe
Fri Mar 07, 2014 4:40 pm
Forum: Moog Music General Topics Forum
Topic: Moog "The Source" Repair help
Replies: 6
Views: 3262

Re: Moog "The Source" Repair help

Hello, Sounds like you may have a "Control" issue. I would look at the output of the de-multiplexor IC 4051 (U4 pin 15) with an "O" scope and see if you are getting a proper signal from the digital control circuits when adjusting the glide amount. Also the buffer (U9A) may also b...
by electrojoe
Sun Jan 30, 2011 10:37 am
Forum: Moog Music General Topics Forum
Topic: Please help me with my Minimoog. I've done all that I can!
Replies: 14
Views: 8141

Re: Please help me with my Minimoog. I've done all that I c

Hi, Sorry to hear that you are having this trouble. However with out seeing the MiniMoog, it can be very dificult to troubleshoot. What you need to do is trace the signal back through the synth starting at the output. You need experience with synth repair and the Mini in general to fix this. It soun...
by electrojoe
Wed Jan 19, 2011 3:04 pm
Forum: Moog Music General Topics Forum
Topic: can't calibrate Moog Source
Replies: 2
Views: 1572

Re: can't calibrate Moog Source

Hi,
Have you tried the adjustment procedure in the user manual?


Gerry