I'm glad it helped you
Franco
Search found 535 matches
- Wed Dec 23, 2020 8:58 pm
- Forum: Technical Discussion
- Topic: Lazy man seeking for vox AC4HW1 layout
- Replies: 13
- Views: 2199
- Wed Dec 23, 2020 3:16 pm
- Forum: Technical Discussion
- Topic: Lazy man seeking for vox AC4HW1 layout
- Replies: 13
- Views: 2199
Re: Lazy man seeking for vox AC4HW1 layout
I definitely need to know where the inputs connect to ground on the layout you posted... Not sure but seems the connection is via the body of the volume pot look to this images (Vox AC4 1962) https://i.imgur.com/E7hUGyv.jpg https://i.imgur.com/xtmvYoN.jpg I've look also to other images and also if ...
- Tue Dec 22, 2020 10:42 pm
- Forum: Technical Discussion
- Topic: LR8: an LM317 on steroids to stabilize up to 450 V
- Replies: 13
- Views: 4081
Re: LR8: an LM317 on steroids to stabilize up to 450 V
Not difficult to be find at 50c (61c with tax) https://it.rs-online.com/web/p/regolatori-di-tensione-lineari/8293266/ Told that I must specify that I think it will be better used in an HiFi circuit in a guitar amp a solid B+ on preamp tubes may be not what you would like to have but this is my opini...
- Tue Dec 22, 2020 10:37 pm
- Forum: Technical Discussion
- Topic: Lazy man seeking for vox AC4HW1 layout
- Replies: 13
- Views: 2199
Re: Lazy man seeking for vox AC4HW1 layout
Here is the early layout
Here the early and the later schematics
K
Here the early and the later schematics
K
- Mon Dec 21, 2020 1:33 pm
- Forum: Technical Discussion
- Topic: Lazy man seeking for vox AC4HW1 layout
- Replies: 13
- Views: 2199
Re: Lazy man seeking for vox AC4HW1 layout
OK If I opened this thread a way it can be misunderstand I can confirm what pompeiisneaks say I'm not asking to draw a layout for me, only asking if someone has under hands the layout of that amp About the schematic , yes, I've a copy, here it is AC4HW1 Schematic.jpg K p.s.: If someone is interested...
- Sun Dec 20, 2020 6:22 pm
- Forum: Technical Discussion
- Topic: Lazy man seeking for vox AC4HW1 layout
- Replies: 13
- Views: 2199
Lazy man seeking for vox AC4HW1 layout
Looking around I've find this page with good inside images of an AC4HW1 https://www.tdpri.com/threads/goodbye-ruby-tubes-day-ii-vox-ac4hw1-the-unboxening.639441/ it will be possible to spent some time to draw a copy of the layout with components values and connections but before it will be better to...
- Sun Dec 20, 2020 2:36 pm
- Forum: Technical Discussion
- Topic: LR8: an LM317 on steroids to stabilize up to 450 V
- Replies: 13
- Views: 4081
- Tue Aug 11, 2020 4:50 pm
- Forum: Technical Discussion
- Topic: vibrotron clone
- Replies: 16
- Views: 2277
Re: vibrotron clone
Many thanks for the answer maxkracht
Franco
Franco
- Mon Aug 10, 2020 10:57 am
- Forum: Technical Discussion
- Topic: vibrotron clone
- Replies: 16
- Views: 2277
Re: vibrotron clone
If I were to do It over, I would make a number of layout changes Which ones ? To me the layout seems good .... -- I added a 1M pot to the back of the unit to make it variable between all trem and all vibe and I think I like some of the in between settings a bit better. Please can you explain, I'm n...
- Sat Aug 08, 2020 7:58 pm
- Forum: Technical Discussion
- Topic: vibrotron clone
- Replies: 16
- Views: 2277
Re: vibrotron clone
Very Nice Build
I'm interested on your project and I'll follow your experience with interest
Franco
I'm interested on your project and I'll follow your experience with interest
THANKSEDIT:
I was missing this
Does the problem is solved with the correct LED ?No problems at all with the correct LED installed.
Franco
- Fri Jun 12, 2020 7:31 pm
- Forum: Technical Discussion
- Topic: SYNERGY ROYAL MUSTARD CAPS--POLARIZED?
- Replies: 30
- Views: 4203
Re: SYNERGY ROYAL MUSTARD CAPS--POLARIZED?
Hmmm. There's a business opportunity - three terminal capacitors. Take an ordinary epoxy-dipped wrapped foil cap; wrap a layer of copper foil around it, with a wire lead coming out; dip it again in pretty-color epoxy, and label it with something like "Hyper-blast Mega-foil!!!" and do a blinding mar...
- Thu Apr 02, 2020 9:08 pm
- Forum: Technical Discussion
- Topic: Does someone has a schematic for the Zeppelin Percolator ?
- Replies: 16
- Views: 2237
Re: Does someone has a schematic for the Zeppelin Percolator ?
Many Thanks Martin - Ian - Vintagekiki I've some NOS SE OT (I think they were planned for radio use) rated for 6W that has a reflected impedance of around 6K - 7K (don't remember if with 4 or 8 ohm load) and my intention is to use one of those, I've also some other SE OT (used), guessing from weigh...
- Thu Apr 02, 2020 10:38 am
- Forum: Technical Discussion
- Topic: Does someone has a schematic for the Zeppelin Percolator ?
- Replies: 16
- Views: 2237
Re: Does someone has a schematic for the Zeppelin Percolator ?
Ciao Ian
With the help of a friend I'm arranging a personal circuit that uses the 6AF11 tube
still in work, I'm considering some options but till now not convinced at 100% with anyone
Many Thanks for the info, 7-9K Load, and what about the B+ level you considered on compute ?
Franco
With the help of a friend I'm arranging a personal circuit that uses the 6AF11 tube
still in work, I'm considering some options but till now not convinced at 100% with anyone
Many Thanks for the info, 7-9K Load, and what about the B+ level you considered on compute ?
Franco
- Wed Apr 01, 2020 8:51 pm
- Forum: Technical Discussion
- Topic: Does someone has a schematic for the Zeppelin Percolator ?
- Replies: 16
- Views: 2237
Re: Does someone has a schematic for the Zeppelin Percolator ?
Ciao vintagekiki thanks for answering I was asking because I have find on the web some different solutions The Squirrel Monkey use a 3.5K OT (and the autor talk about 0.8W output if I'm not wrong) A radio project from Popular Electronics january 1963 uses 10K OT The Percolator uses an OT of which I ...
- Sat Mar 28, 2020 8:20 pm
- Forum: Technical Discussion
- Topic: Does someone has a schematic for the Zeppelin Percolator ?
- Replies: 16
- Views: 2237
Re: Does someone has a schematic for the Zeppelin Percolator ?
Many Thanks vintagekiki Based on my 35 years engineering experience, I tried on basis of photos to find common point, and as result is schematic that is located in front of you. so I would like to ask you .... in the web I've find indications that say that the primary impedance of the OT is 6K (the...