Search found 67 matches

by HamishR
14 May 2020, 01:26
Forum: Boutique Stompboxes dissected...
Topic: Lumpy's Tone Shop - Lemon Drop [traced]
Replies: 26
Views: 11879

Re: Lumpy's Tone Shop - Lemon Drop [traced]

I'll have to go back and compare. I think they sounded quite similar with pregain all the way up but personally I think the pregain is kinda useless. The sound is very "transistory" and harsh where the 3-knob is pleasantly primitive in that old-school Led Zeppelin way. I have no idea how they may ha...
by HamishR
11 May 2020, 09:47
Forum: Boutique Stompboxes dissected...
Topic: Lumpy's Tone Shop - Lemon Drop [traced]
Replies: 26
Views: 11879

Re: Lumpy's Tone Shop - Lemon Drop [traced]

I honestly don't know. I drew these from a trace at Guitar FX Layouts. There is a thread on the forum there.
by HamishR
11 May 2020, 04:12
Forum: Boutique Stompboxes dissected...
Topic: Lumpy's Tone Shop - Lemon Drop [traced]
Replies: 26
Views: 11879

Re: Lemondrop? [traced]

Quick note for the 3-knob version - the trimmer spans 4 rows, not the usual three! It's easy with the trimmers i use to bend the middle leg a bit to make it span further. You can see I have tried to indicate that in the layout. It shouldn't make contact with the row above.
by HamishR
11 May 2020, 04:09
Forum: Boutique Stompboxes dissected...
Topic: Lumpy's Tone Shop - Lemon Drop [traced]
Replies: 26
Views: 11879

Re: Lemondrop? [traced]

I have drawn vero layouts for both versions - FWIW I think the 3-knob version sounds better. I added a bias trimmer too. Easy enough to leave out.
Lemon Drop ver3.png
Lemon Drop 4-knob.png
by HamishR
01 Mar 2020, 11:17
Forum: Boutique Stompboxes dissected...
Topic: Suhr - Eclipse [traced]
Replies: 13
Views: 4315

Re: Suhr - Eclipse [traced]

That makes sense - thanks!
by HamishR
01 Mar 2020, 04:11
Forum: Boutique Stompboxes dissected...
Topic: Suhr - Eclipse [traced]
Replies: 13
Views: 4315

Re: Suhr - Eclipse [traced]

Thanks! So you could possibly build a decent overdrive pedal from this schematic without using the buffer? Or is it necessary to keep things from oscillating?
by HamishR
29 Feb 2020, 11:47
Forum: Boutique Stompboxes dissected...
Topic: Suhr - Eclipse [traced]
Replies: 13
Views: 4315

Re: Suhr - Eclipse [traced]

Please excuse my ignorance - I looked up OPA171AIDBVR and found that it's an op-amp chip. What role does it play here? I see that all of the operating voltage for the circuit comes from the OPA171AIDBVR so assumed it must have been some kind of charge pump but it seems that it's not. So what does it...
by HamishR
25 Jan 2020, 04:22
Forum: Boutique Stompboxes dissected...
Topic: Kingsley - Page (gutshots)
Replies: 32
Views: 5225

Re: Kingsley Page Gutshots

Does the input really go directly to the grid? Shouldn't there be a 68K resistor or similar in between? Or have I misread your schematic (entirely possible!).
by HamishR
05 Jan 2020, 03:32
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Rams Head Big Muff FS36999 hFE measured
Replies: 16
Views: 9668

Re: Rams Head Big Muff FS36999 hFE measured

I used to make the diodes switchable. Reason I stopped is that with higher gain transistors the change was not so noticeable - definitely it had an effect but I always prefered the lower gain setting anyway. And while it's more noticeable with lower gain trannies I still prefer the lower fuzz setting!
by HamishR
04 Jan 2020, 11:58
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Rams Head Big Muff FS36999 hFE measured
Replies: 16
Views: 9668

Re: Rams Head Big Muff FS36999 hFE measured

I have built various versions of Big Muff with lower gain transistors - 2N2222A and 2N3904 - and really liked the results. But then I usually play them at lower gain levels, ie gain not much further up than 8-9.00. The lower gain trannies give a smooth, fat buttery sound rather than the buzz saw of ...
by HamishR
23 Oct 2019, 10:25
Forum: Boutique Stompboxes dissected...
Topic: Mythos - Chupacabra [traced]
Replies: 6
Views: 2017

Re: Mythos Chupacabra [traced]

I don't have the pedal any more but here is a vero layout I drew from it:
by HamishR
21 Oct 2019, 14:23
Forum: Boutique Stompboxes dissected...
Topic: Mythos - Chupacabra [traced]
Replies: 6
Views: 2017

Re: Mythos Chupacabra [traced]

FWIW I built one based on my drawing just to be certain - and I am still amazed at how blatant and exact the copy is - and yup, the Chupacabra is definitely a Red Llama. I swapped the 68nF cap to 220nF and it sounded a little better but still thin, buzzy and not really very exciting. Oddly enough th...
by HamishR
19 Oct 2019, 11:42
Forum: Boutique Stompboxes dissected...
Topic: Mythos - Chupacabra [traced]
Replies: 6
Views: 2017

Mythos - Chupacabra [traced]

I recently bought a Mythos Chupacabra - the soundclips online sounded good and everyone I asked who knew of Mythos pedals said they were very good. It is sold as "the sound of early ZZ Top Billy Gibbons" - hey, I like those sounds! So it arrived, I plugged it in and was soooo disappointed. Thin, buz...
by HamishR
01 Jun 2019, 12:09
Forum: Boutique Stompboxes dissected...
Topic: Greer Lightspeed
Replies: 26
Views: 11883

Re: Greer Lightspeed

I don't mind the asymmetrical clipping but tried it with 2 x 1N4001s and 2 x 1N4148s (one of each on each side) and liked it better.
by HamishR
29 May 2019, 02:28
Forum: Boutique Stompboxes dissected...
Topic: Greer Lightspeed
Replies: 26
Views: 11883

Re: Greer Lightspeed

While I'm not a huge fan of the Timmy it's still a beloved pedal of many for good reason. The Lightspeed seems to be a way of taking a revered pedal and making it less useful. I built one to see what the fuss was about and found it altogether underwhelming. I'd take a Timmy over the Lightspeed any d...
by HamishR
18 Mar 2019, 04:06
Forum: Boutique Stompboxes dissected...
Topic: Wampler Pantheon [traced]
Replies: 38
Views: 10755

Re: Wampler Pantheon [traced]

Well I finally got to try this pedal - I was quite keen because in theory it addresses all of the things I liked and didn't like about the Bluesbreaker/King of Tone overdrives. The main issue of mine being the lack of low end. But I am somehow disappointed - in trying to "fix" so many things it appe...
by HamishR
02 Mar 2019, 11:37
Forum: Boutique Stompboxes dissected...
Topic: Keeler designs Kick Fuzz
Replies: 5
Views: 1769

Re: Keeler designs Kick Fuzz

So almost 5 years later I find this thread and build the pedal. :-) I just happened to have some BC182L trannies and some 2N5088s. It's a cool fuzz - I like it a lot. The texture knob works much like most "starve" or "bias" knobs and it's effective. Overall it's quite bright so I may tweak the tone ...
by HamishR
27 Feb 2019, 08:38
Forum: Boutique Stompboxes dissected...
Topic: Keeler Designs Push
Replies: 19
Views: 6775

Re: Keeler Designs Push

Thanks Bool! I may try that. In the meantime as I was looking at this quite simple circuit it made me think I could add a Timmy-ish bass control to it. So I did. And I REALLY like the result! I think I like it better than the stock Push. While I don't think I have done a masterful job at all it's go...
by HamishR
27 Feb 2019, 03:07
Forum: Boutique Stompboxes dissected...
Topic: One Control - Honey Bee
Replies: 15
Views: 4260

Re: One Control - Honey Bee

Wow - now that's cool! Great to roll your own isn't it?