I'm working on a tube amp where I am interested in potentially changing tubes in the future. This would require swapping a few resistors around. The manual for my kit indicates that the PCB is thick and makes it hard to remove components. I'm wondering if there is some type of socket or disconnect that would allow me to swap resistors without having to desolder them?
These turned hollow sockets are available in single units or as shown can take 0.3 in bent 1/4 w resistors
or you buy these strips and easily break individual pins apart:
https://www.ebay.co.uk/itm/122920791237
or you buy these strips and easily break individual pins apart:
https://www.ebay.co.uk/itm/122920791237
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Ahh, perfect! Thank you so much. So, no more than 1/4W though? Is that because the connection inside the socket isn't soldered, or because the plastic will melt?
If you know which resistors you will use, you can solder them all on the board, and select the active
one for each function with a soldered jumper, or even a switch if this will be frequent.
The pcb sockets are only good for a limited number of insertions. Also you must select the proper socket
size for the component lead diameter. This is somewhat critical, so use only high quality receptacles.
https://www.mill-max.com/search/tags/receptacle?tab=pinsrecs
one for each function with a soldered jumper, or even a switch if this will be frequent.
The pcb sockets are only good for a limited number of insertions. Also you must select the proper socket
size for the component lead diameter. This is somewhat critical, so use only high quality receptacles.
https://www.mill-max.com/search/tags/receptacle?tab=pinsrecs
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If the board has a lot of space, you could use a pcb mount barrier strip. Use it either for
mounting the parts, or just for configuring a jumper to select one part of several on the board.
An example, there are many.
https://www.molex.com/molex/products/part-detail/terminal_blocks/0387006104
mounting the parts, or just for configuring a jumper to select one part of several on the board.
An example, there are many.
https://www.molex.com/molex/products/part-detail/terminal_blocks/0387006104
That’s a good idea. The board is pretty tight, I’ll have to see exactly where the resistors I’ll need to change are located.
Is there a particular reason why it would be a bad idea to run a screw through the through hole, secure it with a nut, and used it as a binding post? I did this in a couple places on my BA-3, and it worked, but the fact that I’ve never seen it done leads me to believe it’s non-ideal.
Is there a particular reason why it would be a bad idea to run a screw through the through hole, secure it with a nut, and used it as a binding post? I did this in a couple places on my BA-3, and it worked, but the fact that I’ve never seen it done leads me to believe it’s non-ideal.
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That's exactly what I did! Thanks for validating the idea. Good to know there are several options to pursue. Thanks!
going with the screw idea, you could solder ring terminals to your resistors for extra security.
Or use say Molex KK headers & crimp the matching plugs to the resistors.
Depends how often you're swapping as to how complicated you make it.
Or use say Molex KK headers & crimp the matching plugs to the resistors.
Depends how often you're swapping as to how complicated you make it.
