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Old 6th August 2021, 02:47 PM
Dave999 Dave999 is offline
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Join Date: Dec 2007
Location: Twickenham,Middlesex, GB
Posts: 35
Default Re: 5687 replacement tube.

I run 6N2P as an ECC 83 equivelent in a Phono 2 from time to time
using these
https://www.ebay.co.uk/itm/164535065...oAAOSwsFpaC3Up

(sellers confidence that they work in all amps is worrying they won't)

to reconfigure heaters for 6.3 volt they have an Ecc88 style heater set up

if the heater supply in your amp is the same, +6.3-0-6.3 you might be able to use them to run 6N6P

but check heater wireing and pin outs

i like the Russian valves seem to have added an extra octave of tuneful bass with a nice clear treble still evident

6n1p-EV makes for a nice ECC88 replacement in pre II higher heater current but seems to cause no issues with power supply

Dave
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