Help question Building a 102 using a 60 watt crate transformer

samtech60 · Post by **samtech60** » Sat Aug 12, 2023 12:17 am

This Crate had a very unique autobias circuit that would automatically switch between 6L6s and El34s with no adjustments just change the tubes ! Way back in 1997 definitely a different design for back then kind of interesting.

samtech60 · Post by **samtech60** » Sat Aug 12, 2023 12:34 am

What's your guys feelings about flyback diodes ? I read they change the tone abit? Good for output transformer protection though?

samtech60 · Post by **samtech60** » Sat Aug 12, 2023 1:00 am

Here is the power tube socket module

samtech60 · Post by **samtech60** » Sat Aug 12, 2023 1:02 am

Here is the preamp opto switching circuit

samtech60 · Post by **samtech60** » Sat Aug 12, 2023 1:03 am

I have actually thought a time or two of adapting silent switching just like some of the Boogies

samtech60 · Post by **samtech60** » Sat Aug 12, 2023 1:08 am

490 volt plates and seems to be -45 for negative bias

samtech60 · Post by **samtech60** » Sat Aug 12, 2023 1:23 am

And a whole bunch of bipolar transistors and fets and optical switches

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Help question Building a 102 using a 60 watt crate transformer

Re: Help question Building a 102 using a 60 watt crate transformer

Re: Help question Building a 102 using a 60 watt crate transformer

Re: Help question Building a 102 using a 60 watt crate transformer

Re: Help question Building a 102 using a 60 watt crate transformer

Re: Help question Building a 102 using a 60 watt crate transformer

Re: Help question Building a 102 using a 60 watt crate transformer

Re: Help question Building a 102 using a 60 watt crate transformer