Loctal Tubes

[old_coot88]

Loctals seemed very sturdy and robust electrically back in the day. In 30+ years in the trade, I don't recall ever replacing one.

But in the decades following, some loctals reportedly develop pin-to-socket intermittency from corrosion. Small pin diameter seems to exacerbate it.

[dieseljeep]

Originally Posted by old_coot88

Loctals seemed very sturdy and robust electrically back in the day. In 30+ years in the trade, I don't recall ever replacing one.

But in the decades following, some loctals reportedly develop pin-to-socket intermittency from corrosion. Small pin diameter seems to exacerbate it.

It seems unusual that the Government suppliers weren't that crazy about them, even though they seemed to be as you say.
They were used, but not in too many applications.