Can anyone think of any possible use for hundreds of 6AL5s ?
(The 1N4148 of the tube world) other than BB gun target practise.
M
(The 1N4148 of the tube world) other than BB gun target practise.
M
You could build a few hundred radios. They make fine detectors.
Or sell them to someone who repairs VTVMs. Every one I've ever seen has a 6AL5 in it.
Or sell them to someone who repairs VTVMs. Every one I've ever seen has a 6AL5 in it.
Five or ten in parallel will be the envy of any 6X4 in the world. Only good for 330PIV though (330VDC max doubler, 165V full wave cap input).
Tim
Tim
> any possible use for hundreds of 6AL5s?
Vacuum-tube digital computer.
Oh, sure, you need some twin-triodes too. But early computers (vacuum, germanium, silicon, and even DTL and TTL chips) use diode-logic as much as possible.
It's been a while since I ran optimizations like this. I'm gonna speculate that "hundreds" of dual-diodes could build an 8-bit full adder. Two sets of 8 toggle switches, one set of neon-lamp outputs, and you can add any two numbers from 0 to 255 as fast as you can work the switches.
If you lived in the land of 120V: put about 20 heaters in series, all 40 plates in parallel, you could build a death-trap trickle-charger to keep your lawn-tractor battery topped-off all winter. "Death-trap" because you have a 50:50 chance of having 120VAC on the battery terminals. This is bad enough, I don't think you should consider 40 bottles for a 240V battery trickler.
> VTVMs. Every one I've ever seen has a 6AL5 in it.
Yeah, but I've never seen one fail? Unless you blow it by probing your 211 amp plate, the total ampere-hours is about zero per decade.
Vacuum-tube digital computer.
Oh, sure, you need some twin-triodes too. But early computers (vacuum, germanium, silicon, and even DTL and TTL chips) use diode-logic as much as possible.
It's been a while since I ran optimizations like this. I'm gonna speculate that "hundreds" of dual-diodes could build an 8-bit full adder. Two sets of 8 toggle switches, one set of neon-lamp outputs, and you can add any two numbers from 0 to 255 as fast as you can work the switches.
If you lived in the land of 120V: put about 20 heaters in series, all 40 plates in parallel, you could build a death-trap trickle-charger to keep your lawn-tractor battery topped-off all winter. "Death-trap" because you have a 50:50 chance of having 120VAC on the battery terminals. This is bad enough, I don't think you should consider 40 bottles for a 240V battery trickler.
> VTVMs. Every one I've ever seen has a 6AL5 in it.
Yeah, but I've never seen one fail? Unless you blow it by probing your 211 amp plate, the total ampere-hours is about zero per decade.
Build hybrid bridges using the paralleled sections of a 6AL5 in each "hollow state" leg. 30 mA./300 V. B+ rails are USEFUL in preamps.
Why, so you get the worst of both worlds, a waste of SS with only all the voltage drop of tubes?
Tim
Tim
Detector
Pick out the Tung-Sol 6AL5. Best FM detector tube available, but most wont hear the difference anyways as their FM tuner may not be of true audiophile quality.
Pick out the Tung-Sol 6AL5. Best FM detector tube available, but most wont hear the difference anyways as their FM tuner may not be of true audiophile quality.
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