[RSM] Fwd: Oddball observation about W3LPL station

[Cary Rubenfeld]

---------- Forwarded message ----------
From: Art Boyars <artboyars at gmail.com>
Date: 23 February 2017 at 19:29
Subject: Oddball observation about W3LPL station
To: VE4EA <carys1 at gmail.com>


Thought you might be interested.  Original post is below Frank's reply.

73, Art


Date: Thu, 23 Feb 2017 14:50:14 -0500 (EST)
From: donovanf at starpower.net
To: pvrc at mailman.qth.net
Subject: Re: [PVRC] W3LPL station World record
Message-ID:
        <28720106.297482.1487879414603.JavaMail.root at starpower.net>
Content-Type: text/plain; charset=utf-8

Hi Phil,


Interesting observations! My first 3-1000Z amp was built in 1966
as a band switching amp then converted to a single band amp as
I built the remaining amps from about 1975-1978.


Over one million QSOs have been made with those amps. You
could count the total number of failures on the fingers of one hand.
All of the repairs were completed in less than an hour each (mostly
the time required to open up and re-close the amplifier).


The tubes have been replaced two or three times as their thoriated
tungsten filament emission weakened after thousands of hours of
use. T hey would have been quite usable on CW for many more
years, but low emission tubes produce unacceptably high SSB
inter-modulation products.


73
Frank
W3LPL

----- Original Message -----

From: "pca via PVRC" <pvrc at mailman.qth.net>
To: pvrc at mailman.qth.net
Sent: Thursday, February 23, 2017 5:01:18 PM
Subject: [PVRC] W3LPL station World record

After reading Frank's recent CW DX score and station
description, I am ready to assert that his homebrew
monoband 3-1000Z amps hold the following WORLD
RECORDS:

- most QSOs by band
- most QSOs in total across the HF bands
- lowest failure rate per QSO
- least expensive per QSO by a huge factor
- least frills

If I recall correctly, many of them have been in service
for over 40 years as I first tried them at his MD QTH in
Crownsville in the mid 1970s. Back then, the power limit
was 1KW INPUT and the ARRL DX Test was two full weekends
per mode.

73,
Philip KT3Y