Forums :: Resources :: Features :: Photo Gallery :: Vintage Radio Shows :: Archives :: Books
Support This Site: Contributors :: Advertise


It is currently Oct Sat 20, 2018 2:48 am


All times are UTC [ DST ]





Post New Topic Post Reply  [ 1 post ] 
Author Message
 Post subject: 4 pin tube socket adaptor
PostPosted: Apr Tue 03, 2018 1:40 am 
Member
User avatar

Joined: Sep Mon 18, 2017 2:23 am
Posts: 1844
Location: Plymouth, MI
Had a little free time this past weekend so I decided to try to solve the problem of not being able to test short pin tubes or 99 tubes with the real stubby pins. Not only are the pin lengths a problem but also the different pin outs on the UV and UX 99'S.There are probably others, not sure. So I went into my business Sunday and fired up a CNC lathe and turned up some of these.

Attachment:
4 pin adapt-1.jpg
4 pin adapt-1.jpg [ 230.25 KiB | Viewed 260 times ]


Attachment:
4 pinm adapt 2.jpg
4 pinm adapt 2.jpg [ 22.05 KiB | Viewed 260 times ]


Then I took an old bayonet socket and a new replica tube base .....

Attachment:
4 pin adapt 4.jpg
4 pin adapt 4.jpg [ 22.16 KiB | Viewed 260 times ]


and started making an adapter that you could change the pin out on .......


Attachment:
4 pin adapt 5.jpg
4 pin adapt 5.jpg [ 23.05 KiB | Viewed 260 times ]


and finally.....


Attachment:
4 pin adapt 6.jpg
4 pin adapt 6.jpg [ 22.58 KiB | Viewed 260 times ]


Attachment:
4 pin adapter 7.jpg
4 pin adapter 7.jpg [ 220.01 KiB | Viewed 260 times ]

_________________
Dan

I know just enough to be dangerous.....
(Member - Michigan Antique Radio Club)


Top
 Profile  
 
Post New Topic Post Reply  [ 1 post ] 

All times are UTC [ DST ]


Who is online

Users browsing this forum: radiohenry and 9 guests



Search for:
Jump to:  
























Privacy Policy :: Powered by phpBB