[Test-Equipment] HP-606 panel meter

[Richard Knoppow]

----- Original Message ----- 
From: "Barry Tuttleman" <bdtuttleman at att.net>
To: <test-equipment at mailman.qth.net>
Sent: Wednesday, September 02, 2009 1:29 PM
Subject: [Test-Equipment] HP-606 panel meter


>i have what i think is an HP-606 panel meter in front of 
>me: old style round type, has "HEWLETT PACKARD" in the 
>center, "WESTON ELEC. Inst., etc" on the top, "HP-606" on 
>the lower left, "HP-112-61" on the lower right, "POWER SET" 
>above the scale, center zero w/ +1 +2 +3 (DBM) to the 
>right, and -1 thru -6 to the left w/ a "ZERO SET" on the 
>far left.
>
> hp manuals 606A & 606B show large rectangular meters; is 
> this probably a 606 meter?
>
> TIA!~
> barry
> carson city

     Are you quite sure its marked 606 and not 608? AFAIK no 
round meters were ever used on the 606 series and none were 
marked as this one is with a "carrier set". The markings are 
typical of the 608 series.
     Also, AFAIK there was no just plain 606. The instrument 
was designed by Art Fong around the early 1960s. The 606B 
came out about the late 1960s and differes from the A in 
having a buffer stage and a means to connect it to a phase 
lock loop box so it can be referenced to a high stability 
source.
     Its also possible that this meter may have come from a 
microwave generator since they use waveguide beyond cutoff 
attenuators and must be stadardized for input level to the 
attenuator. That would include the 616 series.


--
Richard Knoppow
Los Angeles
WB6KBL
dickburk at ix.netcom.com