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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+tetrode\s+push\-pull\s+amp\s+schematics\s*$/: 20 ]

Total 20 documents matching your query.

1. [Amps] tetrode push-pull amp schematics (score: 1)
Author: "Charlie" <charlie@drhabekost.com>
Date: Wed, 17 Jun 2015 11:41:05 -0700
I am looking for a schematic of a push pull tetrode amp. Any ideas? Thanks, Charlie _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/m
/archives//html/Amps/2015-06/msg00043.html (6,343 bytes)

2. Re: [Amps] tetrode push-pull amp schematics (score: 1)
Author: Robert Morris <robrk@nidhog.net>
Date: Wed, 17 Jun 2015 15:49:18 -0400
Go buy a big, empty hard drive and go here.... http://www.pmillett.com/tubebooks/technical_books_online.htm Mouse down to "Radio" 1930's, 40's 50's ARRL Handbooks, Pre Bill Orr "West Coast" handbooks
/archives//html/Amps/2015-06/msg00044.html (7,264 bytes)

3. Re: [Amps] tetrode push-pull amp schematics (score: 1)
Author: Robert Morris <robrk@nidhog.net>
Date: Wed, 17 Jun 2015 16:16:08 -0400
The QRP rig on page 644 of the 1959,"The Radio Handbook" (Orr) might be a start. Bill didn't mess around.... Called Eimac, one day, in the 70's, he answered the phone. Thanks. My wife is happy for th
/archives//html/Amps/2015-06/msg00045.html (7,300 bytes)

4. Re: [Amps] tetrode push-pull amp schematics (score: 1)
Author: "Brad Osburn" <plantrunner5@msn.com>
Date: Wed, 17 Jun 2015 16:20:52 -0600
Charlie, Under the heading of For What it's Worth I too am building a push-pull amp (4CX1500B). Basically I'm using Rich's single ended broadband input (4:1 balun xfmr terminated in 200 ohms, 100 eit
/archives//html/Amps/2015-06/msg00048.html (9,378 bytes)

5. Re: [Amps] tetrode push-pull amp schematics (score: 1)
Author: "Charlie" <charlie@drhabekost.com>
Date: Wed, 17 Jun 2015 18:26:49 -0700
Brad et al Thanks for the replies. Lessons learned: 1) A Startpage search is not a Google search!!! 2) This book link is a goldmine: http://www.pmillett.com/tubebooks/technical_books_online.htm 3) I
/archives//html/Amps/2015-06/msg00050.html (10,302 bytes)

6. Re: [Amps] tetrode push-pull amp schematics (score: 1)
Author: "Gary Schafer" <garyschafer@largeriver.net>
Date: Wed, 17 Jun 2015 20:48:13 -0500
Why would you want to build a push pull amplifier? Single ended is much simpler. 73 Gary K4FMX _______________________________________________ Amps mailing list Amps@contesting.com http://lists.conte
/archives//html/Amps/2015-06/msg00051.html (10,595 bytes)

7. Re: [Amps] tetrode push-pull amp schematics (score: 1)
Author: "Hardy Landskov" <n7rt@cox.net>
Date: Wed, 17 Jun 2015 19:42:33 -0700
My question too. Don't complicate your life into a divorce.... 73 Hardy N7RT Why would you want to build a push pull amplifier? Single ended is much simpler. 73 Gary K4FMX ___________________________
/archives//html/Amps/2015-06/msg00052.html (11,411 bytes)

8. Re: [Amps] tetrode push-pull amp schematics (score: 1)
Author: "Gary Schafer" <garyschafer@largeriver.net>
Date: Wed, 17 Jun 2015 21:55:27 -0500
Push pull doesn't really buy you anything other than reduced 2nd harmonics, which isn't a problem as the tank circuit will take care of that for ham purposes. It is sometimes used on higher frequenci
/archives//html/Amps/2015-06/msg00053.html (14,009 bytes)

9. Re: [Amps] tetrode push-pull amp schematics (score: 1)
Author: "Gary Schafer" <garyschafer@largeriver.net>
Date: Wed, 17 Jun 2015 22:06:16 -0500
Class B is More linear than what? You really don't want to run a pair of 4CX1500 in class B at RF. Less 2nd harmonic content at the output with push pull but not less IM products. 73 Gary K4FMX _____
/archives//html/Amps/2015-06/msg00054.html (9,212 bytes)

10. Re: [Amps] tetrode push-pull amp schematics (score: 1)
Author: Vic Rosenthal <k2vco.vic@gmail.com>
Date: Thu, 18 Jun 2015 09:45:24 +0300
The 4CX1500b is designed to be exceptionally clean in class AB1. I don't know if anything significant is to be gained by operating class A as a previous poster suggested. Unless you need a shack heat
/archives//html/Amps/2015-06/msg00055.html (12,851 bytes)

11. Re: [Amps] tetrode push-pull amp schematics (score: 1)
Author: "Jeff AC0C" <keepwalking188@ac0c.com>
Date: Thu, 18 Jun 2015 01:52:15 -0500
I'm not sure the gentlemen's value assessment on the amps various attributes (other than the focus on clean) - but there is definitely merit to having done something uncommon - just for the sake of d
/archives//html/Amps/2015-06/msg00056.html (13,226 bytes)

12. Re: [Amps] tetrode push-pull amp schematics (score: 1)
Author: donroden@hiwaay.net
Date: Thu, 18 Jun 2015 04:24:33 -0500
Quoting Vic Rosenthal <k2vco.vic@gmail.com>: I also don't understand why push-pull is so attractive. The easiest way to get an unbalanced output is to use link coupling as shown in the old handbooks.
/archives//html/Amps/2015-06/msg00057.html (9,896 bytes)

13. Re: [Amps] tetrode push-pull amp schematics (score: 1)
Author: KA4INM <ka4inm@gmail.com>
Date: Thu, 18 Jun 2015 07:13:43 -0400
Push pull doesn't really buy you anything other than reduced 2nd harmonics, which isn't a problem as the tank circuit will take care of that for ham purposes. It is sometimes used on higher frequenc
/archives//html/Amps/2015-06/msg00059.html (11,676 bytes)

14. Re: [Amps] tetrode push-pull amp schematics (score: 1)
Author: "Gary Smith" <Gary@ka1j.com>
Date: Thu, 18 Jun 2015 09:52:25 -0400
I had an 10" x 10" leaded glass window in my 4PR-1000A homebrew just so I could watch the glow. 73, Gary KA1J -- This email is free from viruses and malware because avast! Antivirus protection is act
/archives//html/Amps/2015-06/msg00060.html (10,035 bytes)

15. Re: [Amps] tetrode push-pull amp schematics (score: 1)
Author: "Gary Schafer" <garyschafer@largeriver.net>
Date: Thu, 18 Jun 2015 17:13:39 -0500
Push pull and class B operation are two different things. You can not run a lower idle current just because the tubes are in push pull. You will get the same distortion products as if they were opera
/archives//html/Amps/2015-06/msg00062.html (12,356 bytes)

16. Re: [Amps] tetrode push-pull amp schematics (score: 1)
Author: "Peter Voelpel" <dj7ww@t-online.de>
Date: Fri, 19 Jun 2015 02:22:28 +0200
Which Japanese HAM transceiver is using LDMOS final transistors? And all I know without the "A" button are push-pull class AB. 73 Peter Every 100 Watt Japanese HAM transceiver that I have looked at e
/archives//html/Amps/2015-06/msg00063.html (9,447 bytes)

17. Re: [Amps] tetrode push-pull amp schematics (score: 1)
Author: KA4INM <ka4inm@gmail.com>
Date: Thu, 18 Jun 2015 20:47:44 -0400
Which Japanese HAM transceiver is using LDMOS final transistors? "the famous orange button puts the more expensive and newer model Yaesu radios into Class A." FT-1000Mark 5 FTDX-5000M and perhaps mo
/archives//html/Amps/2015-06/msg00064.html (9,638 bytes)

18. Re: [Amps] tetrode push-pull amp schematics (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Sat, 20 Jun 2015 18:55:36 -0400
Isn't class A idle current max (tube dissipation) with max signal giving minimum dissipation? (The tube is never driven "into" cut off) Class B is at cutoff while class C is deep into cutoff?. 73 Rog
/archives//html/Amps/2015-06/msg00066.html (10,845 bytes)

19. Re: [Amps] tetrode push-pull amp schematics (score: 1)
Author: KA4INM <ka4inm@gmail.com>
Date: Sat, 20 Jun 2015 21:43:53 -0400
Isn't class A idle current max (tube dissipation) with max signal giving minimum dissipation? (The tube is never driven "into" cut off) Class B is at cutoff while class C is deep into cutoff? No, wi
/archives//html/Amps/2015-06/msg00067.html (10,920 bytes)

20. [Amps] tetrode push-pull amp schematics (score: 1)
Author: John Lyles <jtml@losalamos.com>
Date: Fri, 26 Jun 2015 20:32:31 -0600
I think this thread is old, but have been busy commissioning a new HPA, another pair of Diacrodes (tetrodes) at 200 MHz, class B. Its working now, has consumed me since February, the installation and
/archives//html/Amps/2015-06/msg00072.html (11,434 bytes)


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