[Henry] Henry 2K relay problem

[David L. Thompson]

I have a very old Henry 2K Serial # 156.  I have been using this on the 17
and 12 meter bands.   Today the Henry will not key from an
exciter/transceiver.  The old 2K has the time delay relays and a pair of
relays for control and these all appear in good order.  I have had to
burnish these in the past and have replaced the 115N120 6N02 time delay
relays in the past.

The problem seems to be the keying from the exciter.  I replaced the keying
line from the ICOM (just a normal open/closed transmit circuit).  The amp
kicked in Ok so I hooked up the old lead again and again nothing.  The
replacement lead also did not key the amp.  I checked both leads (RCA plugs
on each end) and when I put the ICOM in TX the circuit closed.  I then found
a lead with the RCA plug at one end and solder leads at the other.  I
plugged in the RCA to the Henry 2K relay jack and shorted the lead and still
nothing.  I did
notice that when I plugged in the replacement that there was a spark and the
circuit worked and the Henry took drive correctly.

Before I tear into the 2K (its difficult to do as you have to take the amp
chassis out of the
console) does anyone have any ideas.  I don't think there is another relay
only a circuit that ties into the two relays in the power supply chassis.
The ICOm keys my 8877 and amp supply amp but neither of these work on 17 or
12.

73 Dave K4JRB
thompson@mindspring.com