[Boatanchors] Thunderbolt Amplifier

[manualman at juno.com]

So is he looking for both or one or the other? Or do you have two
buddies?

For AM, the Courier is probably a poor choice for the Ranger. A pad would
be required between the Ranger and Courier to drop the drive power down
or the Ranger final would have to be run on the low voltage supply. One
could also drop the screen voltage down to reduce Ranger output. The best
you can do with the Courier safely running 811A's would be around 100
watts carrier.

The Thunderbolt is a bit better on output on AM. Should be able to get
around 200 watts carrier. Depending on how you run it, a pad may also be
required between the Ranger and Thunderbolt. External relay switching
needs to be provided to switch the cut-off bias.

I have one of each but I generally use low power (25 watts or less) SSB
transceivers to drive them. An Apache or DX-100 on AM puts out as much
output power as a Ranger/Courier within a few watts.

Pete, wa2cwa

Date: Thu, 22 Dec 2016 16:38:18 -0600
Subject: [Boatanchors] Courier Amplifier
Message-ID: <assp.01656e4cc4.005101d25ca4$177c4de0$4674e9a0$@idworld.net>

My local restoration buddy is looking for a clean Courier amplifier to
drive
with his Ranger.  If you have one for sale or know of one please let me
know.


On Thu, 22 Dec 2016 18:10:32 -0600 "Gary H. Harmon, Jr."
<gharmon at idworld.net> writes:
> My local restoration buddy is looking for a clean Thunderbolt 
> amplifier to
> drive with his Ranger.  If you have one for sale or know of one 
> please let
> me know.
> 73,
>Gary H. Harmon, Jr. - K5JWK - HAM Radio and ATARI Archaeologist