Search found 136 matches

by sonicvi
09 May 2022, 16:18
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Höfner - Wah Wah [schematic]
Replies: 28
Views: 10467

Re: Höfner - Wah Wah [schematic]

I just got one of these recently except it’s Halifax instead of Höfner. Other than the name it looks nearly identical to the one Boris posted above. The serial number is 13. I was tracing the circuit and it’s almost the same as the classic Vox circuit, but there’s a 1M resistor connected between the...
by sonicvi
05 Jul 2012, 13:09
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Dyna Soar - Lite
Replies: 32
Views: 11288

Re: Dyna Soar - Lite

Also, this isn't the same pedal that Sonic Youth used. They used a regular Dyna Soar, not the Dyna Soar Lite. I remember when I saw Urge Overkill back in 1993 they had one too. http://www.sonicyouth.com/mustang/eq/kfx03.jpg Regular you say... Can you elaborate more info what the difference was to t...
by sonicvi
03 Jul 2012, 19:15
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Dyna Soar - Lite
Replies: 32
Views: 11288

Re: Dyna Soar - Lite

Also, this isn't the same pedal that Sonic Youth used. They used a regular Dyna Soar, not the Dyna Soar Lite. I remember when I saw Urge Overkill back in 1993 they had one too.

Image
by sonicvi
03 Jul 2012, 19:08
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Dyna Soar - Lite
Replies: 32
Views: 11288

Re: Dyna Soar - Lite

Here's the datasheet for the 2SC1344. You can see it has ECB pinout.

http://www.futurlec.com/Transistors/2SC1344.shtml
by sonicvi
03 Jul 2012, 19:06
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Dyna Soar - Lite
Replies: 32
Views: 11288

Re: Dyna Soar - Lite

I've owned one and mine had a .1 in the tone stack in place of the 4n. Also, in the one I had the transistors had a pinout that were wrong for the layout. My guess is that's what made it Lite and made it sound like a weak overdrive rather than a huge fuzz. I replaced the transistors with a correct p...
by sonicvi
20 May 2012, 04:59
Forum: DIY Projects
Topic: DirtBag Delay ~ Deluxe Memory Man
Replies: 364
Views: 75860

Re: DirtBag Delay ~ Deluxe Memory Man

I fixed the popping. Turns out C32 (22uF at the output) was leaking about 2V. I replaced it and that almost got rid of the popping. A 1M pulldown resistor at the output got rid of the rest of it.
by sonicvi
19 May 2012, 20:33
Forum: DIY Projects
Topic: DirtBag Delay ~ Deluxe Memory Man
Replies: 364
Views: 75860

Re: DirtBag Delay ~ Deluxe Memory Man

I've just finished up my Dirtbag and I have no issues with clock whine or excessive distortion. The only problem I have is significant footswitch popping that I can't get rid of. Anybody else have this problem and any suggestions for getting rid of it? The pcb already has a 2.2M pull down resistor....
by sonicvi
18 May 2012, 21:37
Forum: DIY Projects
Topic: DirtBag Delay ~ Deluxe Memory Man
Replies: 364
Views: 75860

Re: DirtBag Delay ~ Deluxe Memory Man

I've just finished up my Dirtbag and I have no issues with clock whine or excessive distortion. The only problem I have is significant footswitch popping that I can't get rid of. Anybody else have this problem and any suggestions for getting rid of it? The pcb already has a 2.2M pull down resistor.
by sonicvi
16 Mar 2012, 21:02
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Jen (Gretsch Playboy) - Harmon Booster [schematic]
Replies: 31
Views: 23766

Re: Jen (Gretsch Playboy) - Harmon Booster [schematic]

Looks like Mouser has plenty in stock still.
by sonicvi
16 Mar 2012, 20:58
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Jen (Gretsch Playboy) - Harmon Booster [schematic]
Replies: 31
Views: 23766

Re: Jen (Gretsch Playboy) - Harmon Booster [schematic]

The BC318Cs I bought from Mouser were NPN. You want NPN, Not PNP. I didn't worry about gain values. I think the 318s were in the 400-500 range. They're discontinued by Fairchild now. I'm sure anything similar will be fine. http://www.mouser.com/Search/ProductDetail.aspx?R=BC318Cvirtualkey51210000vir...
by sonicvi
09 Mar 2012, 12:50
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Jen (Gretsch Playboy) - Harmon Booster [schematic]
Replies: 31
Views: 23766

Re: Jen (Gretsch Playboy) - Harmon Booster [schematic]

I dunno about your layout, but the schematic is definitely correct. I've built many clones of it from this schematic.

http://stompboxes.co.uk/forum/viewtopic ... ter#p76119
by sonicvi
09 Jun 2011, 02:56
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Colorsound - Tremolo
Replies: 29
Views: 20595

Re: Colorsound - Tremolo

No, I didn't trace a schematic. But the extra circuit board is just a Linear Power Booster circuit, so you can use a schematic of that to see where the 9V wire should connect.
by sonicvi
05 Jun 2011, 17:26
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Colorsound - Tremolo
Replies: 29
Views: 20595

Re: Colorsound - Tremolo

Hmmm, interesting. How long ago did you buy it? I bought in off ebay in 2008 and sold it probably in 2009. It had no such paper with it when I bought it. I can tell from looking at it why it might not be working. The 9V wire to the extra circuit board is missing. The case has a slight dent and paint...
by sonicvi
05 Jun 2011, 06:37
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Colorsound - Tremolo
Replies: 29
Views: 20595

Re: Colorsound - Tremolo

Dunno who said those are Fulltone mods, but that's how it came from the factory. The latest reissue circuit is not the same as the old ones. It has a JFET in it (that's what the trimpot is for, to bias it).
by sonicvi
05 Jun 2011, 06:34
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Colorsound - Tremolo
Replies: 29
Views: 20595

Re: Colorsound - Tremolo

Haha, I used to own the pedal in the pics above. It's a newish reissue and it had a volume drop so I added that LPB at the output to boost it up to unity.
by sonicvi
02 Jun 2011, 14:54
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Colorsound - Tremolo
Replies: 29
Views: 20595

Re: Colorsound - Tremolo

Pic of the original I used to own, from '77.
Image
by sonicvi
11 May 2011, 15:21
Forum: Boutique Stompboxes dissected...
Topic: Malekko Vibrato
Replies: 27
Views: 10133

Re: Malekko Vibrato

Here's a vibrato comparison thread I posted at HCFX a while back.
http://acapella.harmony-central.com/sho ... highlight=
by sonicvi
11 May 2011, 15:19
Forum: Boutique Stompboxes dissected...
Topic: Malekko Vibrato
Replies: 27
Views: 10133

Re: Malekko Vibrato

DWBH wrote:Really? A small clone? I thought it was a clone of the Boss VB-2.
Small Clone modded for vibrato can sound very similar to the VB-2.