Trident 80B - What are the screws used in this console??

OX4Sound · 26th July 2011

I am currently refurbishing a Trident 80B which has quite a lot of rusty or corroded/ worn screws. Nothing on the desk seems to be metric or imperial.

Can anyone out there tell me definitively what the screws are which:

- Attach the module panel the PCB? (They look like an M3 but aren't. From my research I think they could be 6BA (British Standard).
- Attach the Pots to the Pot shaft? (These are Grubber Screws).
- Attached the Panels to the frame? (They look like an M4 but aren't).

Any help would be much appreciated or leads on where I could purchase these, preferably in the U.K..

Many Thanks!

Dunebuggy · 26th July 2011

no picture ?

Player1 · 27th July 2011

You may have British Whitworth threads. Now obsolete but were used in to the 70's.

OX4Sound · 16th October 2011

As a follow up to this I now have the info:

- Panels to Frame screws are 4BA (1/4").
- The 1/8" Grubber Screws are 6BA (we reused ours having soaked in Coke & WD40 to remove grime & rust).
- Channel module panel to the posts on boards are 6BA (Mostly 1/4" but some halfway are 1/2").

Hope this helps someone out there one day as I spent ages trying to find out!

Robin

26th July 2011	#1
OX4Sound Gear interested Joined: Jul 2011 Posts: 3 Thread Starter	Trident 80B - What are the screws used in this console?? I am currently refurbishing a Trident 80B which has quite a lot of rusty or corroded/ worn screws. Nothing on the desk seems to be metric or imperial. Can anyone out there tell me definitively what the screws are which: - Attach the module panel the PCB? (They look like an M3 but aren't. From my research I think they could be 6BA (British Standard). - Attach the Pots to the Pot shaft? (These are Grubber Screws). - Attached the Panels to the frame? (They look like an M4 but aren't). Any help would be much appreciated or leads on where I could purchase these, preferably in the U.K.. Many Thanks!

27th July 2011	#3
Player1 Lives for gear Joined: May 2007 Location: Colorado Posts: 528	Player1 You may have British Whitworth threads. Now obsolete but were used in to the 70's.

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26th July 2011	#2
Dunebuggy Gear nut Joined: Feb 2006 Location: Montreal Posts: 108	no picture ?

16th October 2011	#4
OX4Sound Gear interested Joined: Jul 2011 Posts: 3 Thread Starter	As a follow up to this I now have the info: - Panels to Frame screws are 4BA (1/4"). - The 1/8" Grubber Screws are 6BA (we reused ours having soaked in Coke & WD40 to remove grime & rust). - Channel module panel to the posts on boards are 6BA (Mostly 1/4" but some halfway are 1/2"). Hope this helps someone out there one day as I spent ages trying to find out! Robin