I'll show my age by doing this, but lets revert mentally back to the
Collins S Line. The transceiver, using a pair of 6146's in the PA, was
most efficient and linear when properly tuned and loaded. It produced
about 120 to 140 watts of PEP output. And there was NO Power control or
method
5W RF power calibrates fine. The 50W fails. Gonna remove the 100W module
today and see if I have a bad transistor… Difficult to do here on the island…
have not built up my test equipment stash here much more than a DVM and an
antenna analyzer.
Dr. William J. Schmidt - K9HZ J68HZ 8P6HK
On 30/01/2022 04:53, Mike Morrow wrote:
The finest pure RPN (not RPL) machine ever made is the HP-42S (1988-1995). It
still brings prices above $300 on eBay and is worth it.
The owners manuals are on eBay in the UK for more than £100!!! Wow!
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