Before I "get the talk" please let me say I know it's Grade A+ Junk, but I can learn something here.
If anyone can help me identify this amplifier I would very thankful.
I specifically need to know what transistor came with this fm/cw amplifier back in the day?
"The Squire 100
Electronics Unlimited
Lebanon, Tennessee"
[photo="medium"]4398[/photo] ..
70's Made no doubt.
Notice the serial on the "FCC Sticker" matches a series of digits scratched/etched /drawn on the pcb "T-3242", also a green sticker with an "11" drawn over a "4" is seen. [photo="medium"]4401[/photo] ..
I don't know, but maybe it used a stud mount style transistor, like an MRF421, or MRF450A. This Amplifier is likely based on an Amateur amplifier like the "EB63" but an earlier incarnation. I wish I knew what Motorola RF Device Application "Note Book" contains a description/schematic of this old school circuit!!!?
[photo="medium"]4404[/photo] .
Surely a "Hooker" "Palomar" "Bimbo" and many others that said "Bi Linear" @ 100-150 watt rated boxes from this era look (almost) identical inside.?
Do you have an amp that looks like this?
[photo="medium"]4403[/photo] .
.
Any help identifying or information regarding transistors used in this "scrap box" would be greatly appreciated, I intend to restore it & add a "Motorola Inspired" AB thermal tracking bias circuit.
Thank You Once Again Guys. 73
P.S.: the possible factory wiring looks sloppy, so that makes me cringe a little.
-LeapFrog
If anyone can help me identify this amplifier I would very thankful.
I specifically need to know what transistor came with this fm/cw amplifier back in the day?
"The Squire 100
Electronics Unlimited
Lebanon, Tennessee"
[photo="medium"]4398[/photo] ..
70's Made no doubt.
Notice the serial on the "FCC Sticker" matches a series of digits scratched/etched /drawn on the pcb "T-3242", also a green sticker with an "11" drawn over a "4" is seen. [photo="medium"]4401[/photo] ..
I don't know, but maybe it used a stud mount style transistor, like an MRF421, or MRF450A. This Amplifier is likely based on an Amateur amplifier like the "EB63" but an earlier incarnation. I wish I knew what Motorola RF Device Application "Note Book" contains a description/schematic of this old school circuit!!!?
[photo="medium"]4404[/photo] .
Surely a "Hooker" "Palomar" "Bimbo" and many others that said "Bi Linear" @ 100-150 watt rated boxes from this era look (almost) identical inside.?
Do you have an amp that looks like this?
[photo="medium"]4403[/photo] .
.
Any help identifying or information regarding transistors used in this "scrap box" would be greatly appreciated, I intend to restore it & add a "Motorola Inspired" AB thermal tracking bias circuit.
Thank You Once Again Guys. 73
P.S.: the possible factory wiring looks sloppy, so that makes me cringe a little.
-LeapFrog
Last edited: