I'm building a slightly improved dummy load for my second test station.
The design uses a single 4PDT toggle switch to select 4/8/16Ω load operation for two independent audio channels.
Honeywell does make such a switch, but it's $52.
I am wondering if there is another source for a 15A toggle switch with the truth table as shown in the attached graphic for less money?
The design uses a single 4PDT toggle switch to select 4/8/16Ω load operation for two independent audio channels.
Honeywell does make such a switch, but it's $52.
I am wondering if there is another source for a 15A toggle switch with the truth table as shown in the attached graphic for less money?
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That looks like a 4P3T switch to me. Plus it looks like one side is a momentary, only the other side and center positions latch in place. Yes?
I think if I were to build what you describe I might use a simple low current switch to control a relay or two.
In my shop, I had a small patch bay for my loads, I could quickly configure it any way I liked with jumoers.
I think if I were to build what you describe I might use a simple low current switch to control a relay or two.
In my shop, I had a small patch bay for my loads, I could quickly configure it any way I liked with jumoers.
This load needs to be totally passive. No power supplies to run relays.
I was thinking the same about 4P3T, but the manufacturer refers to it as 4PDT for some reason. Those are not momentary. The center position simply has half the switches make and half break. It's perfect for my application, but dang, $52 is a bit steep. If nothing cheaper can be found I'll have to bite that bullet and just get it down. Already spent $140 on the heat sink and four big power resistors, plus banana terminals and metal plate for the controls.
I was thinking the same about 4P3T, but the manufacturer refers to it as 4PDT for some reason. Those are not momentary. The center position simply has half the switches make and half break. It's perfect for my application, but dang, $52 is a bit steep. If nothing cheaper can be found I'll have to bite that bullet and just get it down. Already spent $140 on the heat sink and four big power resistors, plus banana terminals and metal plate for the controls.
That is a 4PDT ON-ON-ON toggle switch Or 4PDT(ON)-ON-ON toggle switch, (ON) = momentary
Honeywell 4PDT ON - ON - ON 15 A Toggle Switches | Mouser
Honeywell 4PDT ON - ON - ON 15 A Toggle Switches | Mouser
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