Search found 33 matches

by zosotone
13 May 2016, 16:52
Forum: Boutique Stompboxes dissected...
Topic: Home Brew Electronics - Detox EQ
Replies: 11
Views: 4058

Re: Home Brew Electronics - Detox EQ

Good news! I have the original. Some photos on the new topic: https://www.freestompboxes.org/viewtopic ... 33&t=27633
by zosotone
23 Apr 2016, 21:30
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Earth Sound Research - Graphic Fuzz [schematic]
Replies: 106
Views: 179954

Re: ESR Graphic Fuzz [schematic]

Finally, I've done the vero from Tone Report Weekly Issue 118 http://www.magazine.tonereport.com/tone-report-weekly-issue-118/0778177001457730164 Page 40-48 https://farm2.staticflickr.com/1681/25998765093_92b69d7102.jpg I've added a volume pot after the level. Sounds amazing, full and organic but th...
by zosotone
11 Apr 2016, 17:09
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Earth Sound Research - Graphic Fuzz [schematic]
Replies: 106
Views: 179954

Re: ESR Graphic Fuzz [schematic]

Well, I thought the layout was verified, in theory works well. So, the cut under R5 it's wrong?
by zosotone
10 Apr 2016, 16:35
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Earth Sound Research - Graphic Fuzz [schematic]
Replies: 106
Views: 179954

Re: ESR Graphic Fuzz [schematic]

Can I use the TL071? I have built the vero from tabbycat and I have no sound.

Image

Some oscillation but nothing more. The 9v and ground are the common true?
by zosotone
29 Mar 2016, 23:24
Forum: Boutique Stompboxes dissected...
Topic: Home Brew Electronics - Detox EQ
Replies: 11
Views: 4058

Re: Home Brew Electronics - Detox EQ

Actually, I use a volume pedal with a treble bleed inside. Works well with my Orange amp but it's somewhat limited with the EQ, especially, switching between guitars and pickups.

The idea of the compressor is good but I can't do it with my Diamond Compressor clone :slap:
by zosotone
10 Dec 2015, 23:26
Forum: Boutique Stompboxes dissected...
Topic: Home Brew Electronics - Detox EQ
Replies: 11
Views: 4058

Re: Detox EQ

I'm also very interested in this pedal. I thing that the new Mad Professor Evolution Orange Underdrive it is based on the Detox EQ.
by zosotone
10 Apr 2014, 09:57
Forum: Boutique Stompboxes dissected...
Topic: Lumpy's 73 Boost
Replies: 34
Views: 9201

Re: Lumpy's 73 Boost

Done!

Image

Image
by zosotone
13 Oct 2013, 23:19
Forum: Boutique Stompboxes dissected...
Topic: Lumpy's 73 Boost
Replies: 34
Views: 9201

Re: Lumpy's 73 Boost

Ok thanks, or use a bipolar or a tantalum cap, true? I will try the vero from Silver Blues these days and check it...not yet verified right?
by zosotone
13 Oct 2013, 21:32
Forum: Boutique Stompboxes dissected...
Topic: Lumpy's 73 Boost
Replies: 34
Views: 9201

Re: Lumpy's 73 Boost

Nocentelli wrote:
zosotone wrote:Nice Mbas974! Any mod for this model?
I had a play about on the breadboard, and a 'fat pot' works quite nicely, I just replaced the 680n cap with a 22uf electro, and replaced the switch with a 2k pot.
With 22uf instead of the 680nf, what is the polarity of the electro? Its the same?
by zosotone
11 Oct 2013, 19:14
Forum: Boutique Stompboxes dissected...
Topic: Lumpy's 73 Boost
Replies: 34
Views: 9201

Re: Lumpy's 73 Boost

Nice Mbas974! Any mod for this model? Maybe a gain pot? Here a vero by Silver Blues at Guitar FX Layouts:
by zosotone
08 Oct 2013, 21:30
Forum: Boutique Stompboxes dissected...
Topic: Lumpy's 73 Boost
Replies: 34
Views: 9201

Re: Lumpy's 73 Boost

I thing that it's for biasing the second transistor (2N5457)
by zosotone
07 Oct 2013, 10:51
Forum: Boutique Stompboxes dissected...
Topic: Lumpy's 73 Boost
Replies: 34
Views: 9201

Re: Lumpy's 73 Boost

Well, some corrections and the voltages.
by zosotone
04 Oct 2013, 10:14
Forum: Boutique Stompboxes dissected...
Topic: Lumpy's 73 Boost
Replies: 34
Views: 9201

Re: Lumpy's 73 Boost

Hi Tommy, thank you so much for your answer. I love this thing, sounds amazing. The led in this model it's white (a little bit darker) and I put a 2k2 resistor directly to the LED. Also, had a bad connection on the board. I soldered two 1M's (in and out of the board) because I had problems with popp...
by zosotone
03 Oct 2013, 14:35
Forum: Boutique Stompboxes dissected...
Topic: Lumpy's 73 Boost
Replies: 34
Views: 9201

Re: Lumpy's 73 Boost

Like this.
by zosotone
03 Oct 2013, 14:28
Forum: Boutique Stompboxes dissected...
Topic: Lumpy's 73 Boost
Replies: 34
Views: 9201

Re: Lumpy's 73 Boost

The led was soldered directly betwen the 15nf and the 68k.
by zosotone
03 Oct 2013, 14:17
Forum: Boutique Stompboxes dissected...
Topic: Lumpy's 73 Boost
Replies: 34
Views: 9201

Re: Lumpy's 73 Boost

I rewired the led and the resistor because cause problems with the board.
by zosotone
03 Oct 2013, 14:08
Forum: Boutique Stompboxes dissected...
Topic: Lumpy's 73 Boost
Replies: 34
Views: 9201

Re: Lumpy's 73 Boost

I added the two 1M's, on the input and other under the board on the output for the popping. I omitted the 68k beacause it's for the led resistor. Thank you for your corrections.
by zosotone
03 Oct 2013, 13:53
Forum: Boutique Stompboxes dissected...
Topic: Lumpy's 73 Boost
Replies: 34
Views: 9201

Re: Lumpy's 73 Boost

Of course, you can make the schematic... thank you.
by zosotone
03 Oct 2013, 13:50
Forum: Boutique Stompboxes dissected...
Topic: Lumpy's 73 Boost
Replies: 34
Views: 9201

Re: Lumpy's 73 Boost

"684" on C2 and "471" on C1
by zosotone
03 Oct 2013, 13:39
Forum: Boutique Stompboxes dissected...
Topic: Lumpy's 73 Boost
Replies: 34
Views: 9201

Re: Lumpy's 73 Boost

Checking the two blue caps and the voltages...

I added two pull-down resistors (blue in pictures).