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 Post subject: Input jack wiring
PostPosted: Sat Apr 09, 2016 10:09 am 
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Does anyone have a picture of proper input jack wiring when the VRM is added? When the resistor is removed from the jack, does that mean that the wire for the shielded cable must hit both areas of the jack since the connection would be lost without the resistor wired in? I am cleaning up my wiring in this amp. I was never able to successfully get my VRM working properly so I am going to take another stab at it, bought new MOSFET and zenor diode, and cleaning up all my lead dress. It was the first amp I built and I love the sound, I just need to tame the volume. Any help, diagrams, or pictures of input jack wiring for the VRM would be most appreciated.


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 Post subject: Re: Input jack wiring
PostPosted: Sat Apr 09, 2016 2:42 pm 
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Holy Ghost
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Location: Brighton, Canada
The input jack wiring is identical to the standard wiring EXCEPT you cut out just the 1M and move it over to the grids at the input tube.
The 18 watt is the same way.

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 Post subject: Re: Input jack wiring
PostPosted: Tue Apr 12, 2016 3:41 pm 
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Thank you, I will inform you of the results.


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 Post subject: Re: Input jack wiring
PostPosted: Sun Jun 12, 2016 11:06 pm 
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Well It was successful. The vrm works! I would have to say I have learned the importance of proper lead dress, and short and tidy wiring. Amp sounds great. and now I can tame the volume when necessary. Thank you for your help


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 Post subject: Re: Input jack wiring
PostPosted: Mon Jun 13, 2016 10:01 am 
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Holy Ghost
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Excellent Glad to be able to help!

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 Post subject: Re: Input jack wiring
PostPosted: Tue Jun 28, 2016 10:49 am 
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Is it necessary to cut out the resistors and move them to the grids? I have not changed this in mine and it seems to be ok.


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 Post subject: Re: Input jack wiring
PostPosted: Tue Jun 28, 2016 11:33 am 
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The notes about the VRM in the Resources section say to only do the mod if you experience "scratchy noises" at lower VRM settings. If yours is working well I would leave the jacks wired normally.


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 Post subject: Re: Input jack wiring
PostPosted: Tue Oct 24, 2017 4:50 pm 
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Any help, diagrams, or pictures of input jack wiring for the VRM would be most appreciated.


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 Post subject: Re: Input jack wiring
PostPosted: Sat Aug 11, 2018 8:59 am 
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Location: S of Buffalo, NY
SPAM!!


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