Search found 17 matches

by jer_vic
Fri May 24, 2024 10:05 pm
Forum: Technical Discussion
Topic: Yet Another Two Stroke build
Replies: 30
Views: 1570

Re: Yet Another Two Stroke build

If you add a pair of resistors across your switch it won't pop when you change settings. Resistor value doesn't matter too much, too small and the caps will start to boost before being switched in, too large and it will take too long to charge the cap and stop the pop, I usually go somewhere around...
by jer_vic
Fri May 24, 2024 7:22 pm
Forum: Technical Discussion
Topic: Yet Another Two Stroke build
Replies: 30
Views: 1570

Re: Yet Another Two Stroke build

If you add a pair of resistors across your switch it won't pop when you change settings. Resistor value doesn't matter too much, too small and the caps will start to boost before being switched in, too large and it will take too long to charge the cap and stop the pop, I usually go somewhere around...
by jer_vic
Fri May 24, 2024 3:08 pm
Forum: Technical Discussion
Topic: Yet Another Two Stroke build
Replies: 30
Views: 1570

Re: Yet Another Two Stroke build

maxkracht wrote: Fri May 24, 2024 12:38 am What is that pot doing?
That's the input jack. Not sure why they drew it exactly like they did the pots.
by jer_vic
Thu May 23, 2024 10:15 pm
Forum: Technical Discussion
Topic: Yet Another Two Stroke build
Replies: 30
Views: 1570

Re: Yet Another Two Stroke build

Looks nice so far! Good on you for doing multiple test fits. For future builds, if you want to keep the two input jacks and have a hidden boost switch, here's a way to do it with an optional two button foot switch. https://ampgarage.com/forum/viewtopic.php?f=6&t=36383&p=454393&hilit=cloacal#p454393...
by jer_vic
Thu May 23, 2024 6:12 pm
Forum: Technical Discussion
Topic: Yet Another Two Stroke build
Replies: 30
Views: 1570

Re: Yet Another Two Stroke build

Finished drilling/enlarging the extra holes in the chassis. The switch I bought for the voice/boost function was larger than an input jack, so had to enlarge one of them. Also needed a hole for a 2nd output jack, and 1 more to mount the OT. Test fit (again) into the cabinet with the OT mounted to ma...
by jer_vic
Thu May 23, 2024 4:39 pm
Forum: Technical Discussion
Topic: Yet Another Two Stroke build
Replies: 30
Views: 1570

Re: Yet Another Two Stroke build

maxkracht wrote: Thu May 23, 2024 1:59 pm Don't spill adult beverages on your shellac finish or you will have a bad time.
Otherwise known as antiquing, or "I-meant-to-do-that-and-wanted-it-to-look-like-that".
by jer_vic
Thu May 23, 2024 4:37 pm
Forum: Technical Discussion
Topic: Yet Another Two Stroke build
Replies: 30
Views: 1570

Re: Yet Another Two Stroke build

Thanks. I have flake shellac that I dissolved in 99% isopropyl alcohol. You sure about that?? Isopropyl is rubbing alcohol. Shellac is dissolved in methanol. Yeah. The interwebs assured me it was fine, as long as you have a high enough alcohol percentage. Also, that it may take a little longer to i...
by jer_vic
Tue May 21, 2024 10:52 pm
Forum: Technical Discussion
Topic: Yet Another Two Stroke build
Replies: 30
Views: 1570

Re: Yet Another Two Stroke build

Kit arrived today from Weber. Now the fun begins..... First step is shellacking the cabinet. IMG_3954.jpeg A word from someone who has screwed up this procedure. There are two ways to go. One is spraying the cab with nitrous lacquer and letting it go dark of its own accord. The second one is to use...
by jer_vic
Tue May 07, 2024 10:41 pm
Forum: Technical Discussion
Topic: Yet Another Two Stroke build
Replies: 30
Views: 1570

Re: Yet Another Two Stroke build

Kit arrived today from Weber. Now the fun begins..... First step is shellacking the cabinet.
IMG_3954.jpeg
by jer_vic
Sun Apr 28, 2024 6:49 pm
Forum: Technical Discussion
Topic: Yet Another Two Stroke build
Replies: 30
Views: 1570

Re: Yet Another Two Stroke build

Decided on the WSE15, after discussions with Weber. We were both concerned about the physical size of the WSE25. Got my tools all assembled, the resistors and capacitors that I swapped out are here, now just waiting for the amp kit to arrive!
IMG_3944.jpeg
by jer_vic
Sat Apr 20, 2024 4:00 pm
Forum: Technical Discussion
Topic: Broken 5E3 for sale locally - worth checking out?
Replies: 11
Views: 753

Re: Broken 5E3 for sale locally - worth checking out?

It's your decision, but since I think I was probably the most optimistic poster previously, I feel obligated to underscore that I would strongly recommend walking away if you can't get information on part sources. At that point the only things I'd trust would be the speaker and cabinet, and even th...
by jer_vic
Sat Apr 20, 2024 4:45 am
Forum: Technical Discussion
Topic: Broken 5E3 for sale locally - worth checking out?
Replies: 11
Views: 753

Re: Broken 5E3 for sale locally - worth checking out?

Thanks to all who replied - some excellent advice and points of view. First, new info: - he bought the amp from someone else who built it, and he doesn't know what kit it is and more concerning: "I've had it maybe a year? Starting having issues pretty soon, replaced the power tubes and they lasted a...
by jer_vic
Fri Apr 19, 2024 3:35 pm
Forum: Technical Discussion
Topic: Broken 5E3 for sale locally - worth checking out?
Replies: 11
Views: 753

Broken 5E3 for sale locally - worth checking out?

I’m getting ready to build my first amp (see my recent Two Stroke thread) when this popped up locally. “ 5E3 Deluxe kit built, sounded great then started eating up power tubes. Never had time to troubleshoot it. Comes with Celestion V30 12 inch speaker. ” Dude wants $800 CAD. I’ve reached out to ask...
by jer_vic
Mon Apr 15, 2024 6:22 pm
Forum: Technical Discussion
Topic: Yet Another Two Stroke build
Replies: 30
Views: 1570

Re: Yet Another Two Stroke build

This is not clear, If you plug an 8Ω load into a 7K transformer that is derived from a fixed turns ratio. If you plug in a 4Ω load to the SAME secondary winding or tap, then it is 3.5K to 4Ω. If the output transformer has two secondary taps, one 8Ω and one 4Ω then the primary is 7K for both of them...
by jer_vic
Fri Apr 12, 2024 10:34 pm
Forum: Technical Discussion
Topic: Yet Another Two Stroke build
Replies: 30
Views: 1570

Re: Yet Another Two Stroke build

But according to the tube charts, the output impedance of the various tubes I'm interested in (6L6, 6V6, 6K6, EL34 and KT88) vary substantially. So I don't see how one OT, whether it's primary is 5K or 7K ohms, can satisfy all of those different tubes. Is it just the case that either primary value ...