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100W monobloc amp details by Patrick Turner
I recently posted up a new page on 100W UL AB1 monoblocs with new schematics of amps using either 6 x EL34 or 4 x KT120. Included are PSU and protection...
April 3rd 14 10:21 AM
by Patrick Turner Go to last post
0 901
Sanctions against Russian Tube makers by Patrick Turner
So the Ukraine has a few troubles brewing and USA has threatened sanctions. I heard this news a awhile back and I could not help but thing Russians making...
April 3rd 14 10:16 AM
by Patrick Turner Go to last post
0 990
5B 255M amplifier? by bigwig
Hello, Im new to the group. Has anyone built an amp. with or played with 5B 255M?. I have a load of these valves and would like to put them to use. The...
April 3rd 14 10:06 AM
by Patrick Turner Go to last post
8 1,934
VTL 40/40 by Frank Lucas
Hi, is anybody out there with the schematics of this strange beast designed by David Manley? I tried to contact EveAnna Manley and she answered that I had to...
April 2nd 14 05:04 AM
by Stephie Bench Go to last post
1 865
General Precision Laboratory Preamp? by GerryE123
Since it seemed more appropriate, I posted the following on rec.audio.pro, but I did not get any replies: Hi: In my vintage hi-fi travels, I managed to pick...
March 19th 14 07:00 PM
by chreynest Go to last post
1 1,411
1 Attachment(s) Guitar Amp RF oscillation, tube warmer recipe by Patrick Turner
Recently I worked on a Fender Deluxe Re-issue which makes 21Watts at clipping with 2 x 6V6 in output driven by 12AT7 LTP. The input for clipping at signal...
(Multi-page thread 1 2)
March 10th 14 08:26 AM
by Patrick Turner Go to last post
13 2,395
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7 Attachment(s) Power Frequency Ripple Reduction in B+ Supplies by John L Stewart
This note describes a simple, low cost power supply improvement. It allows reduction of the power frequency ripple component (60 Hz in North America & 50 Hz in...
(Multi-page thread 1 2)
March 4th 14 08:30 AM
by Patrick Turner Go to last post
10 1,999
How to restuff a can capacitor? by Edward Morris
I need to restuff a can capacitor. Could someone tell me an easy way to do it? I've never done if before and dread is setting in. Thanks for your...
March 4th 14 04:25 AM
by Horace Go to last post
7 3,110
LTSpice, guitar amp tone control by Patrick Turner
Hi all. At 66yo, I have automatically been granted the license to be a GRUMPY OLD MAN, acronym GOM, aka Experienced Curmudgeon or EC. Why? because NERDS rule...
(Multi-page thread 1 2)
February 28th 14 03:04 AM
by Lord Valve Go to last post
17 2,053
Smile
3 Attachment(s) Power Supply Ripple Sidebands by John L Stewart
Here are a couple of spectrums showing PS Ripple Sidebands on program material. One with the CLC filter in the cct while the other is with the L shorted. The...
February 28th 14 01:20 AM
by John L Stewart Go to last post
0 908
Guitar amp tone control calculators by Patrick Turner
I've been asked by a couple of locals in my town to make their guitar amps sound better. One has had 20 years as a working muso and the other teaches music and...
February 20th 14 05:37 AM
by Patrick Turner Go to last post
8 1,429
1 Attachment(s) Monster Power Amp by Stephie Bench and Myself by [email protected]
Hello all, Since Phil Allison basically dared me to 'ever post here again' I thought I would do a double edged post, simultaneously contributing something to...
(Multi-page thread 1 2 3 ... Last Page)
February 10th 14 06:38 AM
by hugeshows Go to last post
32 3,728
EF86 preamp by Jimmy[_8_]
This is the circuit diagram of a EF86...
February 7th 14 11:01 AM
by Patrick Turner Go to last post
5 1,160
Long tail differential pair?? Who has circuit like that? by Patrick Turner
I have no idea if this reply post will appear at rec.audio.tubes because of recent history with not getting access via Google from where I am in Australia. On...
February 7th 14 10:26 AM
by Patrick Turner Go to last post
0 898
Help find power transformer for project by [email protected]
Hello. Do you still have that Stancor PA-8421? Francis
February 4th 14 07:43 PM
by hugeshows Go to last post
1 824
Acoustech manuals,anyone? by [email protected]
On Friday, August 20, 1999 3:00:00 AM UTC-4, Mjzuccaro wrote: > Guys: > Okay,this is OLD ss stuff,and maybe some of you will remeber Acoustech from the >...
January 9th 14 09:18 PM
by [email protected] Go to last post
0 865
Smile
9 Attachment(s) Low Cost SET Amp for Newbies by John L Stewart
Here is something to get the conversation going again! If one throws enough money at a project, then most anything is possible. For this project I was looking...
January 8th 14 03:09 PM
by John L Stewart Go to last post
1 1,238
Post
The tube power amplifier vs. solid state by steveaudio
A tube power amp has different characteristics is from a solid state amp which will influence its performance with vintage or new speakers. The limiting...
January 8th 14 07:57 AM
by [email protected] Go to last post
4 1,102
What ever happened to Steve Bench? by [email protected]
Hello all, Good to see some familiar names around here. I've been gone for quite a long time. Before everyone starts trying to figure out who I am, I was...
January 7th 14 05:07 AM
by [email protected] Go to last post
1 896
Test for access by patrick-turner
Just seeing if I can reply via Chrome, because IE and Firefox no longer give me access to rec.audio.tubes Patrick Turner.
January 6th 14 12:08 PM
by HpW-Works Go to last post
1 887
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