[Test-Equipment] HP audio oscillator FS?

Tue Dec 13 18:04:49 EST 2016

    I was more concerned with the inside. The rivets are flush. If the 
chassis clears whatever screws you use its fine. I was concerned with 
the ends of the screws and the nuts sticking too far in. Probably oval 
head screws would look even better.

On 12/13/2016 2:19 PM, Barry wrote:
> I used small, flat-head screws (can't remember if they were #4-40 or #6-32) but they nestled rather nicely into the old rivet's countersunk hole in the loops.  They didn't look nearly as bad as I had thought it would.
>
> 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 4:07:56 PM
>> Subject: Re: [Test-Equipment] HP audio oscillator FS?
>>
>> 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
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> ---
>>>>>>>> This email has been checked for viruses by Avast antivirus software.
>>>>>>>> https://www.avast.com/antivirus
>>>>>>>> ______________________________________________________________
>>>>>>>> Test-Equipment mailing list
>>>>>>>> Home: http://mailman.qth.net/mailman/listinfo/test-equipment
>>>>>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>>>>>> Post: mailto:Test-Equipment at mailman.qth.net
>>>>>>>>
>>>>>>>> This list hosted by: http://www.qsl.net Please help support this
>>>>>>>> email list: http://www.qsl.net/donate.html
>>>>>>>>
>>>>>>> ______________________________________________________________
>>>>>>> Test-Equipment mailing list
>>>>>>> Home: http://mailman.qth.net/mailman/listinfo/test-equipment
>>>>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>>>>> Post: mailto:Test-Equipment at mailman.qth.net
>>>>>>>
>>>>>>> This list hosted by: http://www.qsl.net Please help support this email
>>>>>>> list: http://www.qsl.net/donate.html
>>>>>>>
>>>>>> ______________________________________________________________
>>>>>> Test-Equipment mailing list
>>>>>> Home: http://mailman.qth.net/mailman/listinfo/test-equipment
>>>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>>>> Post: mailto:Test-Equipment at mailman.qth.net
>>>>>>
>>>>>> This list hosted by: http://www.qsl.net
>>>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>>>>
>>>>>>
>>>>>> ---
>>>>>> This email has been checked for viruses by Avast antivirus software.
>>>>>> https://www.avast.com/antivirus
>>>>>>
>>>>>> ______________________________________________________________
>>>>>> Test-Equipment mailing list
>>>>>> Home: http://mailman.qth.net/mailman/listinfo/test-equipment
>>>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>>>> Post: mailto:Test-Equipment at mailman.qth.net
>>>>>>
>>>>>> This list hosted by: http://www.qsl.net
>>>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>>>>
>>>>> ______________________________________________________________
>>>>> Test-Equipment mailing list
>>>>> Home: http://mailman.qth.net/mailman/listinfo/test-equipment
>>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>>> Post: mailto:Test-Equipment at mailman.qth.net
>>>>>
>>>>> This list hosted by: http://www.qsl.net
>>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>>>
>>>>
>>>> --
>>>> Richard Knoppow
>>>> 1oldlens1 at ix.netcom.com
>>>> WB6KBL
>>>> ______________________________________________________________
>>>> Test-Equipment mailing list
>>>> Home: http://mailman.qth.net/mailman/listinfo/test-equipment
>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>> Post: mailto:Test-Equipment at mailman.qth.net
>>>>
>>>> This list hosted by: http://www.qsl.net
>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>>
>>> ______________________________________________________________
>>> Test-Equipment mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/test-equipment
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:Test-Equipment at mailman.qth.net
>>>
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>>
>>
>> --
>> Richard Knoppow
>> 1oldlens1 at ix.netcom.com
>> WB6KBL
>> ______________________________________________________________
>> Test-Equipment mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/test-equipment
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Test-Equipment at mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
> ______________________________________________________________
> Test-Equipment mailing list
> Home: http://mailman.qth.net/mailman/listinfo/test-equipment
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Test-Equipment at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL