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400 Watt Linear Amplifier - Palomar 300A For Sale


400 Watt Linear Amplifier - Palomar 300A



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400 Watt Linear Amplifier - Palomar 300A:
$257

Now up for offer is a nice Palomar 300A HF Linear Amplifier! The 300A is a 40-10 meter amplifier with six sweep tubes in grounded grid. In low power mode, the exciter drives the final four sweep tubes and 100 watts drive will yield around 400 watts output! In high power mode, the two tube driver stage is placed in operation (bypassed in the low power mode) and the drive requirement is reduced to 1 to 10 watts. I know this sounds backwards, but DO NOT drive this amp with more than 10 watts in the High Power Mode! (Think about amp power instead of exciter power) In High Power Mode, a 4 or 5 watt drive will yield about 325 watts output! This amplifier layout works very well, the amplifier was very popular with the 10 watt rated radios and QRP rigs. The power supply is a very well done doubler circuit and replacement transformers are sold by Peter Dahl. The power supply is separated from the Amplifier Deck, so your operating area is clean and uncluttered.

This amp has the power supply connected by cable. This particular amp has the black face with the batwing toggle switches. The case is chrome. Cosmetically, this one is very nice. No major dings, dents, or scratches and the chrome is not pitted. The majority of the scratching is on the power supply, but it is the Black Crackle Type finish and is easily spray painted. This is a nice one, so don’t miss it!

The amplifier comes with a copy of the Operating Manual. It’s pretty straight forward, though brief.

If you don't know what you are doing, don't offer on this amp.

I accept all forms of payment.

International buyers are always welcome.

Feel free to email me with any questions you may have.

Good Luck and Happy offerding!

NOTE: Shipping will be in two boxes. I generally remove the tubes, bubble wrap them, and put them inside the amp if there is a fit. Having a steel case around the carefully packed tubes beats getting them banged around in a cardboard box.


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