[Test-Equipment] HP audio oscillator FS?

Tue Dec 13 17:07:56 EST 2016

      e-mail Brettuns, they are very helpful, will give you exact 
dimensions and will also special order stuff not in their catalog.
      There are inexpensive riveters available at hardware stores and 
places like Home Depot. Once you have the tool you will find many 
applications for it.
http://www.harborfreight.com/hand-tools/hand-riveters/hand-riveter-set-38353.html


On 12/13/2016 12:19 PM, Barry wrote:
> I had Brettuns Village make a handle for my 410B.  It is folded and stitched.  I really don't care for the belt-buckle variety.  The one I have is "okay" but would like something closer to the original.
>
> I don't recall, however, seeing the "Stitched Leather Handle with Mounting Rings" offering shown on that page.  I don't know if it's the correct length to fit in the existing loops but if it is, that would be a very nice replacement.  Of course, it requires drilling the old brackets and then reattaching with screws (unless you happen to have a riveter...) but once I did that, it really isn't very noticeable.
>
> Thanks,
> Barry - N4BUQ
>
> ----- Original Message -----
>> From: "Richard Knoppow" <1oldlens1 at ix.netcom.com>
>> To: test-equipment at mailman.qth.net
>> Sent: Tuesday, December 13, 2016 1:59:38 PM
>> Subject: Re: [Test-Equipment] HP audio oscillator FS?
>>
>> 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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>> Test-Equipment mailing list
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-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL