Search found 7 matches

by rep_techy
23 Jul 2010, 01:02
Forum: Pimp-My-Cheap-Pedal
Topic: Behringer VM1 Vintage Time Machine
Replies: 109
Views: 60639

Re: Behringer VM1 Vintage Time Machine

Will email audio clip of the mod. Just PM
by rep_techy
21 Jul 2010, 23:03
Forum: Pimp-My-Cheap-Pedal
Topic: Behringer VM1 Vintage Time Machine
Replies: 109
Views: 60639

Re: Behringer VM1 Vintage Time Machine

Great ! Could you please post this comparison schematic (unless it contains copyrighted material from EHX) ? BTW, isn't the preamp always on in the DMM ? The schematic can be found on Schematic Heaven website. The VM1 schematic is in prior posts. Don't know if the DMM preamp is always on or not, I w...
by rep_techy
17 Jul 2010, 20:45
Forum: Pimp-My-Cheap-Pedal
Topic: Behringer VM1 Vintage Time Machine
Replies: 109
Views: 60639

Re: Behringer VM1 Vintage Time Machine

I studied the DMM schematic and the VM1 schematic, then replaced key components in the exact same locations so that the VM1 is basically a DMM with a different clock circuit and small surface mount components(note:the newer DMMs are supposed to have small surface mount components also). Tonally, it ...
by rep_techy
17 Jul 2010, 20:32
Forum: Pimp-My-Cheap-Pedal
Topic: Behringer VM1 Vintage Time Machine
Replies: 109
Views: 60639

Re: Behringer VM1 Vintage Time Machine

Will post the sound clips asap. Yes, I did mod it for true bypass also with a 3pdt switch and changed the brightness of the blue led in the process(increased the series resistor for less current draw which lowered the blue glare), the led actually turns completely off now. Results: Great tone, no po...
by rep_techy
29 Jun 2010, 22:12
Forum: Pimp-My-Cheap-Pedal
Topic: Behringer VM1 Vintage Time Machine
Replies: 109
Views: 60639

Re: Behringer VM1 Vintage Time Machine

Here are some mods I've done that bring the vm1 closer to dmm spec. Replace the vibe cap c3(330nF) on jack board with dmm value(500nF), c6(.047uF) with dmm(.1uF), c7(47uF) with dmm(22uF), c9(47uF) with dmm(10uF), and VR2 10k audio taper pot with 10k linear like dmm. You may have to tweak the two tri...
by rep_techy
23 Jun 2010, 03:23
Forum: Pimp-My-Cheap-Pedal
Topic: Behringer VM1 Vintage Time Machine
Replies: 109
Views: 60639

Re: Behringer VM1 Vintage Time Machine

Anyone have mods for chorus/vibrato to match DMM, I read somewhere that changing the 4558 ics to TL072 ics produce better tone.
by rep_techy
23 Jun 2010, 03:18
Forum: Pimp-My-Cheap-Pedal
Topic: Behringer VM1 Vintage Time Machine
Replies: 109
Views: 60639

Re: Behringer VM1 Vintage Time Machine

I changed the mix/blend pot from 10k audio taper to 10k linear like the DMM and got better more equal pot travel, 12 o'clock is now actually 50% wet/dry, much more usable, also used 12V 1 amp DC power supply which makes pedal warmer/more usable overall