VVR type 2 in a Rocket Reverb amp

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angelodp
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Re: VVR type 2 in a Rocket Reverb -Mosfet fail

Post by angelodp »

So on a safety note. I am going to implement a thin shield under the board. I could use some recommends on material type and how to glue that to the metal surface.

Thanks
Last edited by angelodp on Tue Apr 13, 2021 3:11 pm, edited 1 time in total.
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dorrisant
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Re: VVR type 2 in a Rocket Reverb amp

Post by dorrisant »

angelodp wrote: Sun Apr 11, 2021 6:39 pm There is a clear shield under the Mosfet that came with the kit. The board is a bit close for comfort. At any rate, I bypassed the VVR and made the connection to the standby, as in the original and the amp is fine and working. I guess I'll get a replacement Mosfet STW12NK90Z looks like it will work fine. Truth is I don't often use the VVR. I have seen where an additional cap can be installed for further protection on the VVR.
I have used that very MOSFET several times over the years. Works great and lower cost than the NTE. Also, easier to find.

Clear mica is fine. I read where a lot of the guys doing hi-fi repairs seem to prefer the silipads. They work well, and a plus is that you can see it if you drop it. :lol:
"Education is what you're left with after you have forgotten what you have learned" - Enzo
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angelodp
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Re: VVR type 2 in a Rocket Reverb amp

Post by angelodp »

Thanks

So I did source another NTE2973.

Question

The original reads NTE 2973 082M

The New one NTE 2973 203J

Is that four number/letter code after the NTE 2973 significant or is a date code or something?

If it says NTE 2973 regardless of the other numbers, are they all the same?
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dorrisant
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Re: VVR type 2 in a Rocket Reverb amp

Post by dorrisant »

Should be... the others numbers maybe a manufacturer or date code.
"Education is what you're left with after you have forgotten what you have learned" - Enzo
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angelodp
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Re: VVR type 2 in a Rocket Reverb amp

Post by angelodp »

Ok thanks man
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angelodp
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Re: VVR type 2 in a Rocket Reverb amp

Post by angelodp »

New Mosfet works, amp is back in business with now a safer shield in place.
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