[R-390] R-390 Digest, Vol 73, Issue 23

Thu May 20 23:08:47 EDT 2010

I have two  HP 606 s one is an ''A'' That I got from Pete Vk3Iz [on this 
list] the other a ''B''   was a  throw out ,although I did donate 20$ to our 
radio club ,to  get the last one , They have been very reliable over the 
last 15 years ,but one did develop a fault in the leveling circuit ,it 
turned out to be a High value resistor, I   have collected some spare tubes 
to support them acquired at Trash and Treasure  sales , they both are 
capable of very high output  +23Dbm into 50 ohms   ,I use them for doing 
dynamic range and blocking tests  along with a HP return loss bridge , also 
to power my GR916A  RF bridge , They are both valued Items at this QTH 
Regards to all Bernie N VK2ABN
----- Original Message ----- 
From: <r-390-request at mailman.qth.net>
To: <r-390 at mailman.qth.net>
Sent: Friday, May 21, 2010 2:00 AM
Subject: R-390 Digest, Vol 73, Issue 23


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> Today's Topics:
>
>   1. HP 606A: Seeking cabinet and RF shield UPDATE (David Wise)
>   2. Re: HP 606A: Seeking cabinet and RF shield UPDATE (Barry)
>   3. Re: HP 606A: Seeking cabinet and RF shield UPDATE (Bill Hawkins)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 19 May 2010 12:19:42 -0700
> From: David Wise <David_Wise at Phoenix.com>
> Subject: [R-390] HP 606A: Seeking cabinet and RF shield UPDATE
> To: "'hp_agilent_equipment at yahoogroups.com'"
> <hp_agilent_equipment at yahoogroups.com>, "'r-390 at mailman.qth.net'"
> <r-390 at mailman.qth.net>
> Message-ID:
> <B59B72B1B1500C42BEB1374A84C366BD2EF103B41B at SJ-EXCHMB.phoenix.com>
> Content-Type: text/plain; charset="us-ascii"
>
> There was one black beauty and one small axial-lead electrolytic.
> I replaced them without even checking them.  And some of the
> coils had come loose and needed to be glued back onto the turrets.
>
> It works, on all bands, AM and CW.  I think it's a winner,
> so now I'm truly interested in a shield and cabinet.  (I have
> hear that the cabinet is common to many instruments of the
> same vintage.  However, the manual lists it as part number
> 606A-44A-2, which sounds unique.  I'll keep my eyes peeled
> anyway.)
> I am also looking for expert opinion regarding the serial number.
> That is, I can't find one anywhere.  Examination of the circuit
> indicates the prefix is either 943 or 009.  The difference is
> Change C in the scan of 00606-90013 available at Agilent.
> This change replaced the coil forms with new ones that were
> interchangeable with the old.  No further information is given,
> but my coils do not match the drawings.  The manual shows
> allen-head tuning cores, while most of my coils have a slotted
> 6-32 stud.  Are these the older ones?
>
> Thanks,
> Dave Wise
> ________________________________
> From: David Wise
> Sent: Saturday, May 15, 2010 7:24 AM
> To: hp_agilent_equipment at yahoogroups.com; r-390 at mailman.qth.net
> Subject: HP 606A: Seeking cabinet and RF shield
>
> I just found a present on my doorstep.  It's an HP 606A RF Signal 
> Generator.
> It's only the bare chassis, and the RF shield that covers the tuning
> coils etc is gone.  Other than that it's untouched and complete, and I 
> wouldn't
> be surprised at all if it worked.  But without the shield it's pretty much 
> useless
> as a generator, as it will leak RF all over the place, and who wants to 
> run a
> bare chassis?  Does anyone have a cabinet and shield?
>
> Thanks,
> David Wise
>
> I'm near Portland Oregon.
>
>
> ------------------------------
>
> Message: 2
> Date: Wed, 19 May 2010 15:56:35 -0500
> From: Barry <n4buq at knology.net>
> Subject: Re: [R-390] HP 606A: Seeking cabinet and RF shield UPDATE
> To: David Wise <David_Wise at Phoenix.com>
> Cc: r-390 at mailman.qth.net, hp_agilent_equipment at yahoogroups.com
> Message-ID: <4BF45083.8020703 at knology.net>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> On 5/19/2010 2:19 PM, David Wise wrote:
>> There was one black beauty and one small axial-lead electrolytic.
>> I replaced them without even checking them.  And some of the
>> coils had come loose and needed to be glued back onto the turrets.
>>
>> It works, on all bands, AM and CW.  I think it's a winner,
>> so now I'm truly interested in a shield and cabinet.  (I have
>> hear that the cabinet is common to many instruments of the
>> same vintage.  However, the manual lists it as part number
>> 606A-44A-2, which sounds unique.  I'll keep my eyes peeled
>> anyway.)
>> I am also looking for expert opinion regarding the serial number.
>> That is, I can't find one anywhere.  Examination of the circuit
>> indicates the prefix is either 943 or 009.  The difference is
>> Change C in the scan of 00606-90013 available at Agilent.
>> This change replaced the coil forms with new ones that were
>> interchangeable with the old.  No further information is given,
>> but my coils do not match the drawings.  The manual shows
>> allen-head tuning cores, while most of my coils have a slotted
>> 6-32 stud.  Are these the older ones?
>>
>> Thanks,
>> Dave Wise
>>
>
> Mine has hex-key tuning cores.  The cabinet says it's an 842 prefix.
>
> Barry - N4BUQ
>
>
> ------------------------------
>
> Message: 3
> Date: Wed, 19 May 2010 16:52:51 -0500
> From: "Bill Hawkins" <bill at iaxs.net>
> Subject: Re: [R-390] HP 606A: Seeking cabinet and RF shield UPDATE
> To: <r-390 at mailman.qth.net>
> Message-ID: <2973DE1647204AF7A508107990BD42AE at cyrus>
> Content-Type: text/plain; charset="us-ascii"
>
> David,
>
> I think I have what you need. I had a 606A once, gone now, but
> there's some mystery pieces left in the shop:
>
> Aluminum box with rack ears 7" high and 10.5" deep, no holes.
> Three smaller pieces of aluminum partial boxes, must be shields.
>
> If that sounds good, send me an address. No charge.
>
> Bill Hawkins
>
>
>
> ------------------------------
>
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> End of R-390 Digest, Vol 73, Issue 23
> *************************************
>