Search found 50 matches

by jallenshaw
27 Feb 2017, 18:47
Forum: Pedal Debugging & Troubleshooting Support
Topic: Peavey HFD-2 Hotfoot troubleshooting (scheme attached)
Replies: 1
Views: 419

Re: Peavey HFD-2 Hotfoot troubleshooting (scheme attached)

In case anyone in the future sees this, experiencing the same problem, I found the solution. Being buffered bypass, there's not a pull down resistor at the input, since it's intended to always be "in circuit"...a problem when using it in a looper situation. The input is left "hanging&...
by jallenshaw
26 Feb 2017, 14:47
Forum: Pedal Debugging & Troubleshooting Support
Topic: Peavey HFD-2 Hotfoot troubleshooting (scheme attached)
Replies: 1
Views: 419

Peavey HFD-2 Hotfoot troubleshooting (scheme attached)

I have an original Hotfoot and it's my favorite OD It has developed a loud "POP" when activated, but only the first time, then it's fine as long as it's left "on", but if left "off" for 15 minutes or so, it will POP again when turned on. It's NOT the switch, which are k...
by jallenshaw
29 Dec 2013, 20:29
Forum: Basic Knowledge
Topic: From IC PC Board to Vero?
Replies: 26
Views: 15199

Re: From IC PC Board to Vero?

Here's a site that might be of help to you....

http://tagboardeffects.blogspot.com/201 ... guide.html
by jallenshaw
27 Dec 2013, 07:26
Forum: Boutique Stompboxes dissected...
Topic: Wampler - Velvet Fuzz [traced]
Replies: 177
Views: 99273

Re: Wampler Velvet Fuzz [traced]

Hello tinker,

Yes, the extra tight pot pin 2 connection to the board is for the 100n cap to ground (which the fat pot doesn't have)

Also, MPSA18 sounds really good for the fat trannie, too....try different ones to your taste (re-bias, of course)

JAS
by jallenshaw
27 Dec 2013, 02:35
Forum: Boutique Stompboxes dissected...
Topic: GasPedals - Dumbbell [traced]
Replies: 64
Views: 25163

Re: GasPedals - Dumbbell [traced]

I have built the 3-knob version from IVIark from his blog, and it is my current favorite OD. It has a certain vocal quality, especially when you dig into the strings hard....very touch responsive. I ended up with green 3mm LED's for the clipping diodes and a TL082 for the opamp. When run in front of...
by jallenshaw
04 Dec 2013, 21:18
Forum: Boutique Stompboxes dissected...
Topic: Wampler - Ace Thirty
Replies: 39
Views: 22115

Re: ACE THIRTY

Brian, a big thank you for responding on this thread!

Great pedals, and a great attitude, too! :thumbsup

JAS
by jallenshaw
04 Dec 2013, 21:12
Forum: Boutique Stompboxes dissected...
Topic: Wampler - Ace Thirty
Replies: 39
Views: 22115

Re: ACE THIRTY

I know some of you are probably eager to trace away, but I think the speculation at this point is almost more fun. You're right, and it'll be traced soon enough. Thank you for your pleasant and thoughtful insight on what you think the circuit might be. Sadly, responses like yours seem to be the exc...
by jallenshaw
03 Dec 2013, 21:08
Forum: Boutique Stompboxes dissected...
Topic: Wampler - Ace Thirty
Replies: 39
Views: 22115

Re: ACE THIRTY

GodSaveMetal wrote:NegationOfNegation, please post the other side of the PCB, thanks!! :applause:
That's a screen grab from Wamplers ACE Thirty teaser video.....pretty sure NoN isn't going to have the flip side shot.

JAS
by jallenshaw
03 Dec 2013, 04:52
Forum: Boutique Stompboxes dissected...
Topic: Himmelstrutz - Fetto [traced]
Replies: 141
Views: 62717

Re: Himmelstrutz - Fetto [traced]

I would replace r3/6/9 (12k's) with 20k to 50k trimmers....mind the pinouts of other FET's

FWIW, I have built 2x Fettos, and the 2SK170BL is best to my ears, and the 12k is perfect....no trimmers needed.
They can be had on eBay for reasonable cost if you shop carefully.

JAS
by jallenshaw
01 Dec 2013, 19:40
Forum: Boutique Stompboxes dissected...
Topic: Wampler - Ace Thirty
Replies: 39
Views: 22115

Re: ACE THIRTY

Well, there's the BOM in one easy shot....thanks for the "capture" On the 30/15 headroom thing, yes, it's "watts", not volts.......an approximate emulation of the touch response/sag/tonal differences between the AC30 and AC15. I suspect that once the specifics of that section of ...
by jallenshaw
29 Nov 2013, 22:18
Forum: Boutique Stompboxes dissected...
Topic: Wampler - Ace Thirty
Replies: 39
Views: 22115

Re: ACE THIRTY

I thought that might be the case, but why??
There looks to be a regular TO-92 J113 elsewhere on the board (directly down from the Treble pot)
by jallenshaw
29 Nov 2013, 21:50
Forum: Boutique Stompboxes dissected...
Topic: Wampler - Ace Thirty
Replies: 39
Views: 22115

Re: ACE THIRTY

On the above linked picture, what is in the J113 space (upper left, between and just above the gain and cut controls)??
by jallenshaw
29 Nov 2013, 21:09
Forum: Boutique Stompboxes dissected...
Topic: Wampler - Ace Thirty
Replies: 39
Views: 22115

Re: ACE THIRTY

Think i read somewhere there is a charge pump incorporated somewhere in it...if I could make out the font on that IC it could say MAX1044... Anyway, Brian's a cool bloke, he'll probably offer up the circuit block descriptions soon enough... Well if you watch the cool youtube vid posted above, it is...
by jallenshaw
28 Nov 2013, 19:29
Forum: Boutique Stompboxes dissected...
Topic: Wampler - Velvet Fuzz [traced]
Replies: 177
Views: 99273

Re: Wampler Velvet Fuzz [traced]

Still dont get the optocoupler switching... Seems a really bad idea from a production point of view Neither do I. :scratch: If it is for quieter switching, I just used the BJF/MP/Bearfoot method (a 5.1v zener in series with the LED CLR) and a standard 3PDT wired in a typical manner and have silent ...
by jallenshaw
28 Nov 2013, 11:27
Forum: Parts & Tools Sourcing & Trading
Topic: TO-18 transistor sockets
Replies: 4
Views: 3538

Re: TO-18 transistor sockets

vvangelovski wrote:Yeah, I've been using SIP sockets so far. But in that configuration they're a pain to hold on the board and solder.
Ah, I agree....I'll keep a look out and post here if I find anything better.

G
by jallenshaw
28 Nov 2013, 04:05
Forum: Parts & Tools Sourcing & Trading
Topic: TO-18 transistor sockets
Replies: 4
Views: 3538

Re: TO-18 transistor sockets

Personally, I build using vero and just use SIP "snap off" type sockets for transistors. Don't know if these will help you or not (if they will fit you needs) but they are certainly affordable. From Mammoth $2.80 for 36 sockets http://www.mammothelectronics.com/620-SIP36-36-Contact-SIP-Thr...
by jallenshaw
26 Nov 2013, 12:36
Forum: Boutique Stompboxes dissected...
Topic: Wampler - Velvet Fuzz [traced]
Replies: 177
Views: 99273

Re: Wampler Velvet Fuzz [traced]

Looks great!

JAS
by jallenshaw
23 Nov 2013, 22:40
Forum: Boutique Stompboxes dissected...
Topic: Dumbloid [traced]
Replies: 478
Views: 180670

Re: Dumbloid [traced]

If LP does a version, they could call it the "Electra-loid" :thumbsup
by jallenshaw
22 Nov 2013, 15:40
Forum: Boutique Stompboxes dissected...
Topic: Dumbloid [traced]
Replies: 478
Views: 180670

Re: Dumbloid [traced]

Lovepedal now does the Zen My guess is Joyo already has one in hand and will have it on the market shortly. They have the $$$ ($600 is nothin to them) and the ability, plus no fear....they'll recoup the investment in the first hour of sales to TGP'ers alone. And you can be sure it won't be gooped......
by jallenshaw
19 Nov 2013, 02:16
Forum: Boutique Stompboxes dissected...
Topic: Dumbloid [traced]
Replies: 478
Views: 180670

Re: Dumbloid [traced]

I'm sorry TGP dudes, but we don't do much pedal investigation recently. We are quite happy to talk about boobs, dix, cox and insult each one of you and our self though As with so many once vibrant forums of years past, the term "Jumped the Shark" comes to mind :cry: However, don't give up...