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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 1,587
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 2,658
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 1,593
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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
0 645
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 1,140
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 3,090
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
5 848
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
0 619
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
1 594
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
0 596
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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
1 933
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
4 831
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
1 620
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
1 603
ISO Gintaras Sakenas/KW Tubes by David Anderson
I bought some capacitors on eBay from Gintaras a few weeks ago and sent him payment, but I haven't gotten any response from him via e-mail. Has anyone been in...
December 10th 13 08:41 AM
by [email protected] Go to last post
8 1,821
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2 Attachment(s) Wobulator by John L Stewart
Aw Yes, the wondrous Wobulator! Patrick mentioned a very useful piece of test equipment. I built one around 1956 to be used to align IF Transformers in AM...
December 8th 13 09:53 AM
by Alex Pogossov Go to last post
5 1,096
Difference between Genalex KT88 and Genalex Gold Lion KT88 ? by Regats
What is the difference between original production Genalex KT88 tubes and original Gold Lions? - The ones made by GEC - Not interested in reissues. Also,...
(Multi-page thread 1 2)
December 7th 13 04:19 AM
by HpW-Works Go to last post
18 3,429
Toob Amplified PC Speakers by Tim Williams
So I guess it really comes down to... what do you want? Can you follow a schematic? (I should hope so... :-p ) Is that good enough for you? Do you have...
December 3rd 13 09:38 AM
by Tim Williams Go to last post
0 760
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4 Attachment(s) All Triode PP UL Amp Secret Revealed by John L Stewart
That circuit I put on Audiobanter is something I looked at about 10 years ago. I had seen in the old tube manuals back more than 60 years ago some rather odd...
December 1st 13 10:39 PM
by John L Stewart Go to last post
3 1,230
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2 Attachment(s) All Triode PP UL by John L Stewart
Here is something to puzzle over in your quitter moments! Cheers to all, John L Stewart
November 22nd 13 08:37 AM
by patrick-turner Go to last post
5 1,081
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