[Test-Equipment] HP audio oscillator FS?

Tue Dec 13 15:18:47 EST 2016

I had some handles redone by a local leather shop. And if you only need
stitching find a cobbler (shoe shop) with both if you tell them your not in
a hurry, the price at lest for me has been surprising low.

-pete

On Tue, Dec 13, 2016 at 11:59 AM, Richard Knoppow <1oldlens1 at ix.netcom.com>
wrote:

>     A workable but identical handle for -hp- instruments like the 200CD
> and 410B can be gotten from
>
>
> http://www.brettunsvillage.com/trunks/howto/parts/schandles.htm
>
>    The ones I've used are the kind with a loop and buckle, they will fit
> the existing staples on the case. To use other handles you must remove the
> staples to get the handles on them. Since clearance inside is limited you
> must use rivets to replace them, screws stick out too far.
>      The key for a 200CD and other oscillators using lamps in the circuit
> is to make sure the lamps make good contact with the sockets. The quality
> of the lamps make a difference in the distortion. -hp- "aged" the lamps but
> I found out that they just ran new lamps up to barely visible heat and then
> backed the voltage down slowly, the idea being to relieve strains in the
> filaments. The late 200CD could be tweeked to much less than half the
> distortion spec and still be stable. Very early ones would often just make
> the spec.
>     If yours has bent capacitor plates just leave them, that was a part of
> the adjustment at the factory.
>
>
> On 12/13/2016 8:01 AM, Barry wrote:
>
>> I think mine had some issues that most likely pointed to dirty power as
>> well.  I'd intended to refurbish it to some degree but in a fit of
>> downsizing, I sold it.  I have other audio generators but there's just
>> something about that big old tube gear that attracts me to it.  This one
>> was in pretty nice shape too.  I think that handle might have been a
>> replacement and sure wish I could find some of those as my 410B could use a
>> better handle.
>>
>> Good luck with your new acquisition.
>>
>> Barry - N4BUQ
>>
>> ----- Original Message -----
>>
>>> From: "Brian Burns" <brian at lessonsinlutherie.com>
>>> To: "Discussion of Electronic Test Equipment" <
>>> test-equipment at mailman.qth.net>
>>> Sent: Tuesday, December 13, 2016 9:55:44 AM
>>> Subject: Re: [Test-Equipment] HP audio oscillator FS?
>>>
>>> Hello Barry,
>>>
>>> Yep, that's the one all right. I wish I had kept mine, but it was blowing
>>> fuses. It turned out to just need new filter caps in the power
>>> supply---they
>>> had shorted.
>>>
>>> Cheers,
>>>
>>> Brian
>>>
>>>
>>>
>>>
>>> ---Original Message-----
>>> From: Test-Equipment [mailto:test-equipment-bounces at mailman.qth.net] On
>>> Behalf Of Barry
>>> Sent: Tuesday, December 13, 2016 7:24 AM
>>> To: Discussion of Electronic Test Equipment
>>> Subject: Re: [Test-Equipment] HP audio oscillator FS?
>>>
>>> Sold mine a few years back.
>>>
>>> http://www.knology.net/~thelanding/ForSale/images/hp200cd-2.JPG
>>>
>>> Kinda wish I hadn't done that now...
>>>
>>> Thanks,
>>> Barry - N4BUQ
>>>
>>> ----- Original Message -----
>>>
>>>> From: "Ian Wilson" <ianmwilson73 at gmail.com>
>>>> To: "Discussion of Electronic Test Equipment"
>>>> <test-equipment at mailman.qth.net>
>>>> Sent: Tuesday, December 13, 2016 9:06:01 AM
>>>> Subject: Re: [Test-Equipment] HP audio oscillator FS?
>>>>
>>>> Hi Brian,
>>>>
>>>> If you are still looking I have one of the 200 models. Yours for
>>>> shipping (I was reluctantly thinking of parting it out - gasp).
>>>>
>>>> 73, ian
>>>>
>>>> On Tue, Nov 8, 2016 at 5:22 PM, Brian Burns
>>>> <brian at lessonsinlutherie.com>
>>>> wrote:
>>>>
>>>> Hello All,
>>>>>
>>>>>
>>>>>
>>>>> Some years ago I was on a forum that was for HP test equipment
>>>>> buffs---now that's pretty arcane! Anyway, I ended selling and
>>>>> trading various pieces of equipment, and silly me I let my HP 200
>>>>> (?) audio oscillator go. Now I need it, or one functionally like it,
>>>>> again. I'm leery of buying one on ebay, and thought I would see if
>>>>> any of you guys have something for sale.
>>>>>
>>>>>
>>>>>
>>>>> Cheers,
>>>>>
>>>>>
>>>>>
>>>>> Brian Burns
>>>>>
>>>>>
>>>>>
>>>>> Toll free: 866-214-9472
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> ---
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> --
> Richard Knoppow
> 1oldlens1 at ix.netcom.com
> WB6KBL
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