Both the 260-A Q-Meter and the 250-A RX Meter were made under the HP brand. Development continued for a while in NJ. A 250-B was made.
The 260-A was replaced by the 4342A.
RX meters vanished and were replaced by VNA's
One not mentioned was the higher frequency Q-Meter, the 190-A. I have
a 190B, which is different andappears to be almost production. With
it came some design notes on a redesign replacing the tubes with transistors. Sadly no names on any of the notes.
There are a couple useful sites for the 260-A
(manuals)
k5bcq talks about making his own work coils, for a long time 103A's were pretty much non existent. But over the past 3 to 4 years they have been showing up. The ones above 5 MHz are still pretty rare.
And if your patient the 518A standards can be had.
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--- In hp_agilent_equipment@..., "Richard Knoppow" <dickburk@...> wrote:
----- Original Message -----
From: "Dave Daniel" <kc0wjn@...>
To: <hp_agilent_equipment@...>
Sent: Friday, December 21, 2012 4:47 PM
Subject: Re: [hp_agilent_equipment] HP Oldies.
Really? I thought I've seen Boonton instruments younger
than that. Did
HP keep the Boonton name for a while after the
acquisition?
Dave
Boonton radio started in 1934 as Radio Frequency
Laboratories and reformed as Boonton Radio Corporation a
short time later. Its first product was the Q-Meter. -hp-
kept the Boonton name for a couple of years anyway. I don't
know if any Q-Meters or RX-Meters were made with the -hp-
trade mark on them but the name is on the label on the back.
--
Richard Knoppow
Los Angeles
WB6KBL
dickburk@...
