AN Conquest Clone modification

pawcio · 17th March 2007, 03:56 PM

Hi all!
I've built my tube amp based on schematic of AN Conquest.
Yesterday I made a modification suggested by a friend.
I removed C and R form the first cathode of 6SN7 and put there a 2,4V battery

I was a little afraid but everything's o.k.
amp didn't blow

and sounds a little bit hmmm smoth and airy.
but I consider if it is safe fo amplifier? what with charging this NiCd battery? will it be charge by current (about 5mA)?

pawcio · 18th March 2007, 09:12 AM

hmm .... nobody?
photo:

Gluca · 18th March 2007, 12:29 PM

Thaaaaat's fine! I like batteries and leds. 5mA is a charging current that a 300mah battery can easily handle so it should be fine there.

Ciao
Gianluca

Jozef · 18th March 2007, 09:11 PM

Pawcio,
This battery maybe give you a little too high bias.
Try to found 1.2V single cell NiCad.

pawcio · 19th March 2007, 08:20 PM

Quote:

Thaaaaat's fine! I like batteries and leds. 5mA is a charging current that a 300mah battery can easily handle so it should be fine there.

what kind of led would you suggest? (color?)

Quote:

This battery maybe give you a little too high bias.Try to found 1.2V single cell NiCad.

1,2V? Isn't it too low?
normally I had about 2V on cathode resistor (320R)

18th March 2007, 09:11 PM	#4
Jozef diyAudio Member Join Date: Jan 2004 Location: east Poland or east EU	Pawcio, This battery maybe give you a little too high bias. Try to found 1.2V single cell NiCad. __________________ Jozef

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18th March 2007, 12:29 PM	#3
Gluca tarmac ripper diyAudio Member Join Date: Nov 2004 Location: Back to Italy	Thaaaaat's fine! I like batteries and leds. 5mA is a charging current that a 300mah battery can easily handle so it should be fine there. Ciao Gianluca

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