6N1 6P14 PP 12 watts schematic

[supernut]

Hi,

I have some 2 tubes of 6N1 and 4 tubes of 6P14P left.

I want to build Push Pull amplifier.

Can anyone provide schematic please?

Thank you very much.

 

[JonSnell Electronic]

Push-Pull (PP) EL84 Tube Amplifier Schematic (ECC83 input)

 

[artosalo]

I agree with John's suggestion, but would like to use 6N1P as a voltage amplifier/cathodyne instead of LTP.
This way the sensitivity of the amplifier will suit better with the typical line level.

The circuit with component values and measured test result is here (page 15):
http://www.valvewizard.co.uk/cathodyne.pdf

 

[supernut]

Dear Artosalo,

Can you provide schematic please?

I might study from the ground.

I just finished 4p1l pp would like to compare sound with 6p14p

Thank you
Thx

 

[rongon]

In addition to the previously mentioned Merlinb (Valve Wizard) cathodyne, a favorite version of a push-pull EL84 amp using that type of driver circuit is Morgan Jones' 'Bevois Valley'. It's on page 454 (figure 6.35) of his "Valve Amplifiers" 3rd Edition.
Valve Amplifiers - Morgan Jones - Google Books

You can see the schematic in the preview linked above.

6N1P isn't the same as an ECC88, but it's in the ballpark.
--

 

[planet10]

Have a look at these 3 — any could be adapted to use your tubes.

The Red Light District - another PP EL84 amp
EL84 Amp - Baby Huey
up-to-date El Cheapo schematic

Searching with each amps name will turn up more threads.

We built a Class A triode verion of El Cheapo and performance is superb, althou amp is limited in power (3.2w),

dave

 

[supernut]

Thank you so much Rongon,

Do you have high voltage regulator to drop B+ 320VDC to 285VDC as in the book?

 

[artosalo]

Can you provide schematic please?

This is an UL circuit with 8k output transformer. Output power is 15 W with about 1 Vrms input voltage. Less than 10 dB GNFB is used. Fixed bias output stage gives higher output level and lower THD.

The above 'Bevois Valley' needs modifications to voltage amplifier/cathodyne if 6N1P is used.

 

[supernut]

Thank you so much mr Artosalo

You are so kind to draw circuit to me

 

[artosalo]

If you want to use simpler DC-coupled voltage amplifier/cathodyne like 'Bevois Valley'
this will work fine with 6N1P:

 

[supernut]

Superb!! Thank you very much

 

[crazyfrog]

Thanks! This could be an alternative to "El cheapo" amp style . I already have many 12AT7 (or ecc81) to make an LTP but 6N1P tubes are not expensive.

This is an UL circuit with 8k output transformer. Output power is 15 W with about 1 Vrms input voltage. Less than 10 dB GNFB is used. Fixed bias output stage gives higher output level and lower THD.

The above 'Bevois Valley' needs modifications to voltage amplifier/cathodyne if 6N1P is used.