samples of 300B in pse or pp

[jarthel]

seems very few of them. I've search the forums and have come across thorsten's one, the sun audio 300B PP.

thanks for the replies

[jane]

Here is a sample of a 842VHD PPP.





Photo Gallery

http://www.veiset.net/842/

Just some minor modifications (lower B+) and it can run with 300B.

Jan E Veiset

[tube-lover]

pls considerate this, very very good sound.


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Žü”g�”“Á�«4Hz�`90kHz (-1dB 1WŽž) Š®�¬�d—Ê 21.6kg
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8dB (8ƒ¶ 1kHz)�‚’²”g˜c—¦ 0.2% ˆÈ‰º (8ƒ¶ 1kHz 1W)
��ECC84, E180CC(MULLARD),5AR4 •W�€‘•”õŽc—¯ŽG‰¹1.0mV ˆÈ‰º (8ƒ¶ •‰‰×Žž)ƒNƒ�ƒXƒg�[ƒN�@-76dB (10kHz L�ÌR) ��300B•Ê”„



thx

thomas

[tube-lover]

U can considerate this outlook.

is 18wats was enough for U.

thx

thomas

[tinitus]

It says that 300B is possible .... but how ???

http://www.pmillett.com/push-pull_kt...driver_pcb.htm

[ianc13]

Another one you could look at:

http://www.audiodesignguide.com/my/pse2.html

That is version 2, the version 1 has some different options for the PSU for either Stereo or Mono block configuration.

http://www.audiodesignguide.com/my/pse.html

I believe that this was published in the Glass Audio Projects book some time ago.

[kevinkr]

300B pushpull design article I wrote that was published in VTV in collaboration with Svetlana (they gave me sample 300B tubes to evaluate) back around 1999.. Link is on my site under amplifier projects.

[phn]

The http://www.audiodesignguide.com/my/pse2.html gets my vote, except PP.

That is, use the 417A or, better, 437A and a trafo phase splitter. The 437A is insane, performance (800 Ohms Rp and mu of +40) and price wise. But if you spend this kind of money, you can just as well spend another small fortune on the drivers.

[jarthel]

Originally posted by tube-lover
pls considerate this, very very good sound.

do you have a larger schematic? I can't make out the values.

thank you

[jarthel]

Originally posted by kevinkr
300B pushpull design article I wrote that was published in VTV in collaboration with Svetlana (they gave me sample 300B tubes to evaluate) back around 1999.. Link is on my site under amplifier projects.

any comment on the amp compared to your other amps?

thank you