Chris -
The high voltage from the HP-23 is a little high in voltage and a quite
low in current capability. That said, it would probably 'work' for low
duty cycle use. CW, SSB with 'typical' transmission duration, (no AM
style 'old buzzard',) and no AM.
HP-23 - 700 VDC @ 250 mA
TR-3 - 650 VDC @ 300 mA, 500 mA peak.
So the '23 won't blow up, but it probably gets pretty warm. A fan on it
would help a little.
Much easier is an AC-3, -OR- and AC-4. Either will work just fine. The
AC-4R is a good idea with either.
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-B, C-Line&
TR-4/C Service Supplement CDs
<www.k4oah.com>
Christopher Bowne wrote:
Greetings from Chris, AJ1G in Stonington, CT.
This is my first post to the group. I picked up a TR-3 at Near-Fest Deerfield
last fall. Has been sitting while I come up with a power supply for it. I
picked up a Heath HP-23.as a potential supply for it this spring. From what I
have read the HP-23 might be marginal with the Drakes due to the higher current
draw of the Drake sweep tubes vs 6146s? I would prefer using an original or
updated AC-3 if anyone has one available for sale. I would also be interested in
a supply for mobile use, again would like to hear comments on use of the lete
model Heath DC solid state mobile supply for the HW/SB transceivers with the
TR-3.
Also looking for info on using the TR-3 on AM....'
73, Chris, AJ1G
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