[MRCA] T-195 Power Supply

[doran platt]

Bill,  It kind of depends which power supply(ies) is/are installed.  If 
you have s straight T-195 with dynamotors in both the HV and LV 
positions, the starting current will be about 90-100 Amps, peak.  I had 
to use a Marine Corps supply rated at 50 Amps and 2ea 18A gell cells as 
boosters for the inrush (Don't recall the p.s. nomenclature and its gone 
now).  Now that I have mine converted to "B" models, with solid-state 
supplies in both positions, there is (virtually) no inrush.  The current 
in my case is about 36 Amps, steady-state.  I am now able to use the 
PP-4763A with no problems.  As a note, I've been told that the 
"straight" PP-4763, with single circuit breaker assy., will hold a T-195 
with dynamotors, but I didn't personally find that to be the case.  The 
PP-4763(A) (used with the GRC-106) has a super-sensitive breaker circuit 
arrangement that, I swear, will trip if you're 10ma over the rated 
current!!!  I've thought about replacing (bypassing) the breakers with 
SB fuses inasmuch as the beast appears to be able handle a sizable 
inrush.  BTW, I also use the Navy/Marine Corps PP-7333 with success on 
the A and B models.

Bill Ramsey wrote:

>All,
>  Finally found the problem with my T-195 not producing RF. Now that that is fixed, I find the power supply I have been using is weak and unfit for a beast with this kind of current needs. 
>  What are you guys using? Batteries? Batteries and a charger? A regulated supply? Some combination of all of these?
>
>Thanks,
>        Bill
>        KA8WTK
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