Revision as of 23:06, 5 November 2017

Palomar

It was NEVER an Amateur Radio HF Amplifier. Let me cover some of the FAQ, pass the information around to your friends.

Let's start with Palomar Electronics Corporation. Palomar Electronics Corp. was a manufacturer of CB linear amplifiers in the 1960’s and 1970’s. Such manufacturing was illegal for Citizens Band class D (27 MHz) usage. The company WENT OUT OF BUSINESS at end of 1980, at the end of the CB craze, stricter FCC regulations, and Reagan administration (which introduced Family Radio Service and GMRS).

That long gone operation has NO connection whatever to Palomar Engineers, Inc. This is the BIG LIE told to the CB community -- they are still around, etc. PALOMAR ENGINEERS, is the legitimate trademark and brand name owner in business today. http://palomar-engineers.com/palomar

SO, your Palomar 3500A is an illegal CB amplifier. It was NEVER sold as a legal or FCC certified HF amplifier. You will not find advertisements for it in the amateur radio trade magazines (QST, CQ, Ham Radio).

Where are the Palomar CB amplifiers coming from? Florida, Texas, Mexico, SW USA, and other locations through the years used the old Palomar name (counterfeit) for quick sales to non-informed buyers. Just like the illegal drug, alcohol, and gun trade, there are individuals that will run garage production or distribution operations for money.

But it has a band switch Common ploy in 1970s in feeble attempt to avoid attention for illegal CB mfg.

D&A in Scottsbluff, NE was also well known for that stunt.

Do you realize that a LOW-BAND FILTER (Assembled) for Multi-Band operation is as expensive as the 140 Watt HF board ?? Good ferrite is not cheap, and someone has to wind those coils and wire a multi-position rotary switch. Why add costs -- when you don't need to, the buyer is electronics/technically ignorant.

Quote I am looking for factory schematics not hand drawn stuff that might be full of errors.

 I have searched the web and found nothing of any real use.

The CB TRICKS schematic was drawn by someone in 1999/2000. The schematic shows the PT9847 transistor, which was originally made by TRW. You do realize that TRW sold that business RF transistor in late 1980s. Last ones mfg. for military/government/space usage and then surplused in 1990s..

You are not going to find factory ... What factory? Customer Service or Support? Stop kidding yourself here.

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The amount of $$$ to build a clean multi-band HF amplifier from the parts you have is an economic hardship on many operators (unemployed, fixed income, retired). It requires fabrication skills and time to read/learn Helge Granberg's Motorola work (Application Notes).

HF Projects is a better entrance ramp, for what you desire, by a US Military Veteran. http://www.hfprojectsyahoo.com/about.html

HF Projects Low Pass Filter Module (Multi-band) http://www.hfprojectsyahoo.com/kitlplowpafi.html