G
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I use Teledyne 712 relays. They are in round metal cans like military opamps.
why use relays?
- Thread starter buschfsu
- Start date
Help Support GroupDIY Audio Forum:
indigom
Well-known member
[quote author="SSLtech"][quote author="JohnRoberts"]A switch with a magic finger to push it.[/quote]
But I have LOADS of unused switches here...
Can't I just buy the magic fingers on their own?
You got any spare ones for sale, John? :green:
Keef[/quote]
What, spare fingers, mate?
:green:
But I have LOADS of unused switches here...
Can't I just buy the magic fingers on their own?
You got any spare ones for sale, John? :green:
Keef[/quote]
What, spare fingers, mate?
:green:
CJ
Well-known member
relays went out, then they came back in.
why?
because, like all things, they get better.
except my personality, which wosens with time.
i have made rent replascing relays with a ss switch for he last fifteen years, finally started to use both, depends on the app, if you use a ss switch, you need polrity protection for mps a14, but not for dual mos fet ac/dc with protection diodes, which is where we are at know.
a form c offers all, ac/dc. no/nc, all in one package so...
seach : current operated switch
i like osram in orange crush orange.
switching to china, so watch it!
why?
because, like all things, they get better.
except my personality, which wosens with time.
i have made rent replascing relays with a ss switch for he last fifteen years, finally started to use both, depends on the app, if you use a ss switch, you need polrity protection for mps a14, but not for dual mos fet ac/dc with protection diodes, which is where we are at know.
a form c offers all, ac/dc. no/nc, all in one package so...
seach : current operated switch
i like osram in orange crush orange.
switching to china, so watch it!
Greg Norman
Well-known member
[quote author="Dan Kennedy"]The Aromat TQ series have been a very reliable, fairly inexpensive relay for me for years.
Out of maybe 20,000 in the last five years, I am aware of 2 or 3 issues.
These have been the 24v 2 form C type, some experience with the same type in 12v, take it for what it's worth.
Used in mic level and line level applications.[/quote]
Have you or anyone noticed a change in quality now that Aromat is part of Panasonic?
Out of maybe 20,000 in the last five years, I am aware of 2 or 3 issues.
These have been the 24v 2 form C type, some experience with the same type in 12v, take it for what it's worth.
Used in mic level and line level applications.[/quote]
Have you or anyone noticed a change in quality now that Aromat is part of Panasonic?
ProfPep
Active member
Reed relays are good for low level low current work. Good ones have precious metal contacts in an inert gas atmosphere.
You can do a good stab at a stub fader or custom rotary with a ring of plain reeds and a moving, shunted magnet. You can get MBB action no problem, BBM is harder. Drawback is size - it's not going into any small size module.
Anyone have a view on the effects of a permanent magnetic field on the sound? I'm sure the Hi-Fi kiddies would find something to object to.
The famous 70's designer amp, the Lecson, had a slider source selector in the preamp. If you looked inside it was a magnet on the slider, moving over pairs of board mounted reeds.
Recently had the thought of doing a programmable take on the Pultec: reed relays instead of the switches, with push buttons for frequencies and motor driven servo pots. An Arduino with a separate compartment and power supply, and snapshot save/record buttons with scribble strips, (and I'm talking Chinagraph not LCD). Servo is dead until asked to memorize or recall, to remove a noise source. Micro never need get anywhere near the audio.
You can do a good stab at a stub fader or custom rotary with a ring of plain reeds and a moving, shunted magnet. You can get MBB action no problem, BBM is harder. Drawback is size - it's not going into any small size module.
Anyone have a view on the effects of a permanent magnetic field on the sound? I'm sure the Hi-Fi kiddies would find something to object to.
The famous 70's designer amp, the Lecson, had a slider source selector in the preamp. If you looked inside it was a magnet on the slider, moving over pairs of board mounted reeds.
Recently had the thought of doing a programmable take on the Pultec: reed relays instead of the switches, with push buttons for frequencies and motor driven servo pots. An Arduino with a separate compartment and power supply, and snapshot save/record buttons with scribble strips, (and I'm talking Chinagraph not LCD). Servo is dead until asked to memorize or recall, to remove a noise source. Micro never need get anywhere near the audio.
