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Mastersound Compact 845 with Pvsane 845T

I own a Mastersound Compact 845 and Mastersound PH5 Pre Amp and orderd two Pvsane 845 T Valves.I was advised by the valve supplier that they would work ok as they were the top of 845 range of valves.I was then advised by my dealer that a mod had to be done to the Cathode Resistor on the Compact 845 to take account of the voltage increase.Otherwise the uit could in the future fail.Any body out there using the 845 T in the compact without modification to the resistor should be aware of this .Any comments welcome
patal

Showing 3 responses by jrmanders

jrmanders
54 posts
 
Hi, yes I spoke to Mastersound on the phone the other day and he confirmed that if I want to use the Psvane 845-T's a mod would need to be performed on my Compact 845.
jrmanders
54 posts
 
Hi Patal, let us know how you get on because I too have a Compact 845 from Jordan, so will be very interest in the outcome

Jonathan.
jrmanders
54 posts
 
Hi Patal,
Glad you like the amp more now with the Pvsane T's. Did the tech need to mod the amp in anyway or did the tubes just drop in and need re-biasing?? I have some Psvane T's here now but haven't tried them yet. Still lovin' the 845A's at mo. If the T's are better then it will be seriously good,
Thanks for getting back to me,

Jonathan
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