UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

M3VUV51 · 7th Dec 2018, 6:16 am

brings back memorys,when i first started messing about with electronics in late 60's/early 70's the oc71 transistors could be turned into the oc71p by scraping the paint off of the body to expose the junction to light,at the time mallard got wise to this and started to fill the glass with a pale blue gloop,i found if i twisted the legs together and stuffed them in one of the holes in the twin tub spinner drum i could centrifuge the gloop to the base of the glass envelope exposing the junction!,happy days! m3vuv.

7th Dec 2018, 6:16 am	#45
M3VUV51 Banned Join Date: Feb 2018 Location: Horncastle, Lincolnshire, UK. Posts: 203	Re: Anyone still use a Twintub? brings back memorys,when i first started messing about with electronics in late 60's/early 70's the oc71 transistors could be turned into the oc71p by scraping the paint off of the body to expose the junction to light,at the time mallard got wise to this and started to fill the glass with a pale blue gloop,i found if i twisted the legs together and stuffed them in one of the holes in the twin tub spinner drum i could centrifuge the gloop to the base of the glass envelope exposing the junction!,happy days! m3vuv.