Search found 613 matches
- Sun Jul 14, 2019 11:44 pm
- Forum: Technical Discussion
- Topic: I seek guidance...new build.
- Replies: 17
- Views: 1414
Re: I seek guidance...new build.
Cxx Thats what I thought. Tone stack is fender Princeton. Funny part is i thought this as gonna be a no brainer! It’s basically a Princeton front end into a Deluxe PI and output section cathode biased. I guessing now should have looked more carefully at the PT I used as voltage seems way more that t...
- Sat Jul 13, 2019 12:42 pm
- Forum: Technical Discussion
- Topic: I seek guidance...new build.
- Replies: 17
- Views: 1414
Re: I seek guidance...new build.
Wpaulvogel
Yes that looks like the place to start to reduce gain. I see that done on some other designs.
Maybe I should have gone with one stage! Thanks
Yes that looks like the place to start to reduce gain. I see that done on some other designs.
Maybe I should have gone with one stage! Thanks
- Fri Jul 12, 2019 1:15 pm
- Forum: Technical Discussion
- Topic: I seek guidance...new build.
- Replies: 17
- Views: 1414
Re: I seek guidance...new build.
couple of pics
- Fri Jul 12, 2019 1:09 pm
- Forum: Technical Discussion
- Topic: I seek guidance...new build.
- Replies: 17
- Views: 1414
Re: I seek guidance...new build.
Steven
So sounds like a bigger cathode resistor is needed...
So sounds like a bigger cathode resistor is needed...
- Fri Jul 12, 2019 1:00 pm
- Forum: Technical Discussion
- Topic: I seek guidance...new build.
- Replies: 17
- Views: 1414
Re: I seek guidance...new build.
xtian
Sure doesn’t seem like it but I’d have to get my scope out and check this...a whole other situation! Haven’t used it in ages...
Sure doesn’t seem like it but I’d have to get my scope out and check this...a whole other situation! Haven’t used it in ages...
- Fri Jul 12, 2019 12:58 pm
- Forum: Technical Discussion
- Topic: I seek guidance...new build.
- Replies: 17
- Views: 1414
Re: I seek guidance...new build.
Martin
Yup big resistor, I’ll do up a schematic shortly but a 22k to PI and a 10k to the V1.
Yup big resistor, I’ll do up a schematic shortly but a 22k to PI and a 10k to the V1.
- Thu Jul 11, 2019 1:51 pm
- Forum: Technical Discussion
- Topic: I seek guidance...new build.
- Replies: 17
- Views: 1414
I seek guidance...new build.
Gentlemen, I've built 5 amps with help from here, 3 TW, 2 Marshall and all have run great, sound great! I decided to put together a small amp for practicing and trying pedals out with. Simple two gain stage, vol/tone control/ LTPPI and two 6V6. Cathode biased. Both stages are 100K, 1.5K/10uf, .022 c...
- Tue Nov 06, 2018 10:59 pm
- Forum: Marshall Discussion
- Topic: JTM 50 Really Loud!
- Replies: 19
- Views: 3380
Re: JTM 50 Really Loud!
Agree!
My Liverpool is way loud. Also really nails the Brian May tone and sustain. It’s a one trick pony but boy what a trick, love it.
Hope to run a two amp setup at some point with a LeLe A/B Y switch...Rocket and a Liverpool!
My Liverpool is way loud. Also really nails the Brian May tone and sustain. It’s a one trick pony but boy what a trick, love it.
Hope to run a two amp setup at some point with a LeLe A/B Y switch...Rocket and a Liverpool!
- Thu Oct 25, 2018 11:22 pm
- Forum: Marshall Discussion
- Topic: JTM 50 Really Loud!
- Replies: 19
- Views: 3380
Re: JTM 50 Really Loud!
Miles, Can’t believe there’s a Van Heflin reference here, so funny. No one knows him I’m sure... Mark I think that choke was supposed to go in a Vox AC50 build but it got dumped so I used it in the JTM 50. I got the blue boards from some of your early builds. In fact my favorite amp is a 2 x EL84 ro...
- Thu Oct 25, 2018 3:09 pm
- Forum: Fender Discussion
- Topic: CJ 11 build question
- Replies: 3
- Views: 931
CJ 11 build question
Guys
Anyone build the CJ11 amp? Looking it over what's with all the cold biased stages?
Two are 3.3K and the 3rd is a 4.7K...
Most Fenders I looked at are easy 1.5K biased.
Are those correct??
Anyone build the CJ11 amp? Looking it over what's with all the cold biased stages?
Two are 3.3K and the 3rd is a 4.7K...
Most Fenders I looked at are easy 1.5K biased.
Are those correct??
- Thu Oct 18, 2018 2:41 pm
- Forum: Marshall Discussion
- Topic: JTM 50 Really Loud!
- Replies: 19
- Views: 3380
Re: JTM 50 Really Loud!
Miles
Sir, you're saying add this MV after the CF before the tone stack with no clippers! Yeah looks pretty easy...
Thanks...
Sir, you're saying add this MV after the CF before the tone stack with no clippers! Yeah looks pretty easy...
Thanks...
- Thu Oct 11, 2018 7:40 pm
- Forum: Marshall Discussion
- Topic: JTM 50 Really Loud!
- Replies: 19
- Views: 3380
Re: JTM 50 Really Loud!
Norbury I built a model 1987 20watt 6v6 combo too. That little bugger is also loud, but a different sound from the JTM 50. The plexi 20 watt has a switch to bypass V2a with a cap so that adds to the crunch there. Plus the 1987 had split cathode for V1 and I parallel the channels with separate volume...
- Thu Oct 11, 2018 4:32 pm
- Forum: Marshall Discussion
- Topic: JTM 50 Really Loud!
- Replies: 19
- Views: 3380
JTM 50 Really Loud!
Gentlemen, I had some parts laying around and found that they would work out nice for a JTM 50 build. So I went at it with the junk I had... V1 A+B shared 820R and 10uF A Shift pot, 50KB, with a 33K resistor (ala Miles idea thanks) for the slope V2B no bypass cap PI Plate both 100K Mixing resistors ...
- Tue Jan 03, 2017 4:45 pm
- Forum: Marshall Discussion
- Topic: JTM build
- Replies: 25
- Views: 4141
Re: JTM build
Nice, very nice. Just add some solder!!
- Sat Oct 22, 2016 1:13 pm
- Forum: Technical Discussion
- Topic: Bias current too high
- Replies: 16
- Views: 2464
Re: Bias current too high
Steve
Sorry I meant more VOLTAGE than I have....
Where you get those cermet pots?
Sorry I meant more VOLTAGE than I have....
Where you get those cermet pots?