Shengyi 6AQ5

toprepairman · 31st October 2011, 01:00 PM

Hi.
This little amp just turned up. It has 4 x 6AQ5 in the output, BUT these are B9A pinned valves, and 6AQ5's are 7pin valves, so what is going on?
Anyone ran into one of these?
Henry

Tom Bavis · 31st October 2011, 01:13 PM

Probably 6P1, which are electrically similar to 6AQ5 or 6V6. There are Russian and Chinese versions - but no US or European equivalents with same pin-out.

toprepairman · 31st October 2011, 01:17 PM

Hi Tom, thanks for the reply, it does also say 6P1 on the chassis. Is this a 9 pin version of 6AQ5?
But why do they also write 6AQ5 when clearly it won't fit?
Are the 6P1's easy to get or will I modify this thing to run something like 6BW6?

dovla · 31st October 2011, 01:27 PM

Quote:

Originally Posted by toprepairman

Hi Tom, thanks for the reply, it does also say 6P1 on the chassis. Is this a 9 pin version of 6AQ5?
But why do they also write 6AQ5 when clearly it won't fit?
Are the 6P1's easy to get or will I modify this thing to run something like 6BW6?

Just type 6p1p-ev into ebay search and pick your vendor ...

toprepairman · 31st October 2011, 01:37 PM

Hi Dovla, many thanks , there's loads of them there.
Feel sorry for anybody looking for a 'real' 6BQ5 who orders these only to find they're 9 pin and not 7 as expected!

rmyauck · 31st October 2011, 07:25 PM

Could the JJ EL844 work? They have 9 watts dissipation and are 9 pin. More $ though!

euro-EL844

toprepairman · 31st October 2011, 07:35 PM

Thanks, I have since ordered some Russian 6P1P-ev thanks to Dovla's suggestion.
If I were to rework for different valves I would probably go for the 6BW6's as they are electrically closer to 6AQ5 whilst having similar dissipation to EL84's. (12 Watts)

31st October 2011, 01:00 PM	#1
toprepairman diyAudio Member Join Date: Nov 2010	Shengyi 6AQ5 Hi. This little amp just turned up. It has 4 x 6AQ5 in the output, BUT these are B9A pinned valves, and 6AQ5's are 7pin valves, so what is going on? Anyone ran into one of these? Henry

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31st October 2011, 01:13 PM	#2
Tom Bavis diyAudio Member Join Date: Jun 2002 Location: Macedon NY	Probably 6P1, which are electrically similar to 6AQ5 or 6V6. There are Russian and Chinese versions - but no US or European equivalents with same pin-out.

31st October 2011, 01:17 PM	#3
toprepairman diyAudio Member Join Date: Nov 2010	Hi Tom, thanks for the reply, it does also say 6P1 on the chassis. Is this a 9 pin version of 6AQ5? But why do they also write 6AQ5 when clearly it won't fit? Are the 6P1's easy to get or will I modify this thing to run something like 6BW6?

31st October 2011, 01:37 PM	#5
toprepairman diyAudio Member Join Date: Nov 2010	Hi Dovla, many thanks , there's loads of them there. Feel sorry for anybody looking for a 'real' 6BQ5 who orders these only to find they're 9 pin and not 7 as expected!

31st October 2011, 07:25 PM	#6
rmyauck diyAudio Member Join Date: Apr 2009 Location: Northern Manitoba	Could the JJ EL844 work? They have 9 watts dissipation and are 9 pin. More $ though! euro-EL844

31st October 2011, 07:35 PM	#7
toprepairman diyAudio Member Join Date: Nov 2010	Thanks, I have since ordered some Russian 6P1P-ev thanks to Dovla's suggestion. If I were to rework for different valves I would probably go for the 6BW6's as they are electrically closer to 6AQ5 whilst having similar dissipation to EL84's. (12 Watts)

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