Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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Keith -
Hit the send button a little too quickly!
IF the original relay was the 15k ohm coil version, there will be an 82
ohm resistor from Pin 8 [cathode] of V10b to ground and no resistor
between Pin 6 [plate] of V10b and the relay coil. Later units that came
with the 2.5k relay will already have a 1.5k ohm, 1/2W resistor between
Pin 6 and the coil, and Pin 8 will be connected directly to chassis.
Since you don't know what changes may have been made to accommodate the
substitute relay, you need to add a 1.5k ohm, 1/2W resistor in series
with the new 2.5k version coil if not already present.
Also, I think Maplin and or Newark in EU has the P&B / TYCO as well.
Garey - K4OAH
Atlanta
Keith -
Potter & Brumfield (TYCO) R10-E1Y4-V2.5K is the standard relay in all
the T-4XC transmitters. Some had a 15k British made relay, but the P&B
is a plug-in replacement.
They are available from Digi-Key and Mouser and probably others.
73, Garey - K4OAH
Atlanta
Drake 2-B, 4-B & C-Line Service CDs
<www.k4oah.com>
Keith Evans wrote:
Hi all,
I have found a T4xc, however the Transmit Receive relay is missing,
and a non standard one has been fitted, adjacent to the original socket.
I wonder if the original type is still able to be sourced somewhere?
73 de Keith
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