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

[David Lennick]

I misremembered what the dog was chasing..a bone, not a cat. Hey, it's only 
been a few decades since I last saw that piece. And I had (may still have) the 
original 1958 issue. Wonderful stuff. Thanks for finding it!

dl

On 11/24/2011 11:38 PM, Mike Daley wrote:
> "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
>>>>>>>>