[78-L] Convert a belt drive turntable to play 78's

[Mike Daley]

"Mother-in-law makes dandy loudspeaker, as you well know"
LOL

On Thu, Nov 24, 2011 at 11:36 PM, Mike Daley <mikedaley at gmail.com> wrote:
> Found it! http://www.hifilit.com/hifilit/Mad/Mad.htm
>
> On Thu, Nov 24, 2011 at 11:31 PM, David Lennick <dlennick at sympatico.ca> wrote:
>> No, maybe you made the felt turntable pad from your sister's skirt..
>>
>> On 11/24/2011 11:29 PM, David Lennick wrote:
>>> I forgot, in the MAD instructions you made the belt drive by swiping the
>>> elastic from your sister's skirt. I can still see Bob Clarke's artwork in my
>>> mind..great piece.
>>>
>>> dl
>>>
>>> On 11/24/2011 11:24 PM, Robert M. Bratcher Jr. wrote:
>>>> Or search for a Dual 12xx (not sure of the exact model number) turntable that will play 78's then spend $50 at Garage-A-Records for the 78rpm ADC needle. Problem solved!!
>>>>
>>>>
>>>>
>>>>> ________________________________
>>>>> From: David Lennick<dlennick at sympatico.ca>
>>>>> To: 78-L Mail List<78-l at klickitat.78online.com>
>>>>> Sent: Thursday, November 24, 2011 10:09 PM
>>>>> Subject: Re: [78-L] Convert a belt drive turntable to play 78's
>>>>>
>>>>> So don't use untensilized half-mil Mylar (remember that stuff?)..
>>>>>
>>>>> dl
>>>>>
>>>>> On 11/24/2011 11:05 PM, Don Chichester wrote:
>>>>>>
>>>>>> Yes, I have.  Some belt TTs have no room at the speed change lever for a larger capstan, but some do.
>>>>>>
>>>>>> I took a length of reel tape, and glued it to the 45 rpm capstan pully (making sure the winding was oriented so as not to unwind when capstan was turning). I gradually spooled off what I thought to be enough tape to make the capstan drive the TT at over 78 rpm.  Then I glued the end down tight.  Checking the speed with a strobe disc, I saw I was off by a few rpm.  So I began to cut off recording tape until I reached 76 rpm (yes, 76, my choice).  Eventually I reached the length that gave me 76 rpm.  Once glued, the TT works great.  That was about 15 years ago.  Still works great!
>>>>>>
>>>>>> Don Chichester
>>>>>>
>>>>>>
>>>>>>> Date: Thu, 24 Nov 2011 21:54:02 -0600
>>>>>>> From: citrogsa at charter.net
>>>>>>> To: 78-l at klickitat.78online.com
>>>>>>> Subject: [78-L] Convert a belt drive turntable to play 78's
>>>>>>>
>>>>>>> Has anyone been able to successfully convert a 33/45 RPM belt drive
>>>>>>> turntable to play 78's? It looks simple enough. One would need to slip a
>>>>>>> larger pulley on the spindle, just over the thin end. Then you could
>>>>>>> have 45/78 RPM. How would I calculate the proper diameter? Machine a
>>>>>>> drum with a lock screw on it?
>>>>>>>
>>>>>>> --
>>>>>>> Mark L. Bardenwerper, Sr. #:?)
>>>>>>> Technology, thoughtfully, responsibly.
>>>>>>> Visit me at http://citroen.cappyfabrics.com
>>>>>>>
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>>>
>>
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>