Search found 592 matches
- Sat May 11, 2024 12:52 pm
- Forum: Speakers and Cabinets
- Topic: cabinet build - leaving space on each side of the chassis
- Replies: 6
- Views: 368
Re: cabinet build - leaving space on each side of the chassis
Thank you for that input Phil. For this first stereo amp its going to be an open back so I guess I can relax on this specifics of dimensions. Fortunately, since it is a Twin Reverb Chassis I'll be using there will be no problem with two 12" speakers side by side. It was actually tempting to use 10" ...
- Fri May 10, 2024 9:58 pm
- Forum: Technical Discussion
- Topic: Two 20 watt amps in one chassis - layout/grounding
- Replies: 17
- Views: 453
Re: Two 20 watt amps in one chassis - layout/grounding
I certainly will Tubetude as I am sincerely very excited in going stereo. I"m convinced I would up the presentation quality of my sound by a few levels, even though I get quite alot of compliments on my tone as it is now - (Sluckey 20 watt 6V6 plexi w/V30 spk, Strat w/Fralin Hot golds, TC Electronic...
- Fri May 10, 2024 2:24 pm
- Forum: Technical Discussion
- Topic: Two 20 watt amps in one chassis - layout/grounding
- Replies: 17
- Views: 453
Re: Two 20 watt amps in one chassis - layout/grounding
Ha amazing. Those are definitely cool, if not a bit fugly. I happened to find twin reverb blank chassis on Ebay for around 50 bucks, thought that was pretty good, and in doing a full size layout drafts on paper, it looked like it had quite enough dimension to fit two amps. The other aspect to this w...
- Thu May 09, 2024 2:34 pm
- Forum: Speakers and Cabinets
- Topic: cabinet build - leaving space on each side of the chassis
- Replies: 6
- Views: 368
Re: cabinet build - leaving space on each side of the chassis
Thank you, this all sounds like good recommendations, and I will be guided as such. This amp (stereo amp) will be built using a Twin Reverb chassis (24 3/8" x 8 1/4" x 1.75") and will have probably 2 x 12" speakers just like a twin, so about the same size cab. I was thinking on going 10" speakers fo...
- Wed May 08, 2024 7:52 pm
- Forum: Technical Discussion
- Topic: Two 20 watt amps in one chassis - layout/grounding
- Replies: 17
- Views: 453
Re: Two 20 watt amps in one chassis - layout/grounding
Alright, lets see if I've got this straight in my head. With plexi preamps, I can place the first input tube stages at the ends of the amp, power section at mid/rear, then run the amplified signal from each end to the normal and bright 1Meg pots that would be located in the middle front of the chass...
- Tue May 07, 2024 6:27 pm
- Forum: Speakers and Cabinets
- Topic: cabinet build - leaving space on each side of the chassis
- Replies: 6
- Views: 368
cabinet build - leaving space on each side of the chassis
Hello, While I assume I could figure this out myself, it would be good to know if there are any standards or optimal space you leave on each side of a chassis. This is when dimensioning out the size of a combo or head cabinet. Thank you. Im almost ready to make my first combo cabinet with a Princeto...
- Mon May 06, 2024 2:43 pm
- Forum: Technical Discussion
- Topic: Two 20 watt amps in one chassis - layout/grounding
- Replies: 17
- Views: 453
Re: Two 20 watt amps in one chassis - layout/grounding
I like the presence of the two High voltage coils on that toroidal transformer.
Makes it a great contender right there - and plenty of 6.3vac current available.
Thanks for the link
Phil D.
Makes it a great contender right there - and plenty of 6.3vac current available.
Thanks for the link
Phil D.
- Mon May 06, 2024 2:32 pm
- Forum: Technical Discussion
- Topic: Two 20 watt amps in one chassis - layout/grounding
- Replies: 17
- Views: 453
Re: Two 20 watt amps in one chassis - layout/grounding
Thanks everyone, very interesting suggestions, especially on the toroidal power transformer. I hadn't thought of that as have never used one in a build. The reason for separate power transformers was based on how I initially pictured the usability of the front panel in terms of the control knob layo...
- Fri May 03, 2024 9:28 pm
- Forum: Technical Discussion
- Topic: Two 20 watt amps in one chassis - layout/grounding
- Replies: 17
- Views: 453
Re: Two 20 watt amps in one chassis - layout/grounding
Hey thanks TUBEDUDE, I have followed that recommendation right up to the "power supply in the middle and inputs on the end". Otherwise, I have it planned out to be two completely separate amps including the power transformers, with the only common components being the AC cord that would branch off t...
- Fri May 03, 2024 2:16 pm
- Forum: Technical Discussion
- Topic: Two 20 watt amps in one chassis - layout/grounding
- Replies: 17
- Views: 453
Two 20 watt amps in one chassis - layout/grounding
Hello, Thats it. I'm doing it, and have begun collecting components and parts. I'm looking by years end to have built a little 20 watt stereo tube amp to take advantage of the nice sounding stereo pedals that are out plus, it just seems like a really cool thing to try, and to have. I'll probably jus...
- Mon Apr 15, 2024 1:10 pm
- Forum: Technical Discussion
- Topic: Regarding the B+mosfet reducer and power ground
- Replies: 10
- Views: 526
Re: Regarding the B+mosfet reducer and power ground
Thanks Dorrisant, I think I can relax now. But there was a level or two I needed to wrap the head around to get a fuller picture of what was going on, electrically. I believe it was Martin that mentioned that what the B+mosfet reducer is doing is lowering the HT centertap by the zener drop, which in...
- Sun Apr 14, 2024 2:12 pm
- Forum: Technical Discussion
- Topic: Regarding the B+mosfet reducer and power ground
- Replies: 10
- Views: 526
Re: Regarding the B+mosfet reducer and power ground
Thank you Martin, According to what you discovered in simulation, seeing noise at the source of the mosfet, its looks like I should leave everything right where it is, if I am in fact getting the right picture: 1. HT center tap to Mosfet source 2. Bias ground to earth grounded power ground 3. Filter...
- Sun Apr 14, 2024 12:42 am
- Forum: Technical Discussion
- Topic: Regarding the B+mosfet reducer and power ground
- Replies: 10
- Views: 526
Re: Regarding the B+mosfet reducer and power ground
Thanks guys for this information, This amp is fixed biases, the bias tap is a 50 volt tap off the HT coil, and the bias has both a bias level "master" and a balance, that I believe part of the Rob Robinette Blackvibe 6L6. And the bias "master" pot had to be rotated nearly 180 degrees to meet the new...
- Fri Apr 12, 2024 3:42 pm
- Forum: Technical Discussion
- Topic: Regarding the B+mosfet reducer and power ground
- Replies: 10
- Views: 526
Re: Regarding the B+mosfet reducer and power ground
Hi RG, thanks for posting on this. I am at work now and will try to see about posting a diagram but, I always seem to fail miserably when attempting to post an image on a forum. I need to get on the stick with that. My power ground was just a small lug strip with HT centertap, filtercap returns (cat...
- Thu Apr 11, 2024 2:10 pm
- Forum: Technical Discussion
- Topic: Regarding the B+mosfet reducer and power ground
- Replies: 10
- Views: 526
Regarding the B+mosfet reducer and power ground
Hello, Something I noticed last night and got me really thinking but, not yet able to fall on a conclusion. This is about what happens to Power ground when a B+mosfet reducer circuit as drawn out by RG and company is installed as should between HT centertap and power ground. As I was going over my l...