Glass fibre basket retainer for 5881/6L6

Make something like Marshall used. Metal cap and springs.

I don't fancy making a pierced metal dome shape, that has to avoid the fragile central area of the glass dome. So far I'm thinking of a length of high temp glass sleeving knotted into a ring, slightly smaller than envelope circumference, with a balancing "knot" on the other side. Then silicone sleeving or springs and glass sleeving down to a pair of solder tags as anchors. Nasty dragons teeth chips in the bottles but they survived

I think making an approximation of the Marshall device is your best bet. They seem to not harm the glass in any I've worked on. And putting those kind of 5881's in a jaw clamp is just plain idiotic. Especially if the tubes hang.

Another awkwardness of the Marshall ones is the tension points must be a good inch below the bottle tops and part wrap around to avoid sliding off. Yes underslung 2002 German Engl E320 50W combo. First time I've come across one of these , to do anything you have to take the whole amp to bits. Surprisingly 2 plain washers were split, probably from using a windy-drill to torque up. Even the maker's ECC83 retainers are an awkward bodge-up, not even fully screening.

You can buy the spring retainer clamps (similar to the Marshall, et al. clamps) from Antique Electronic Supply

See them in the Vacuum Tube Accessories area.

Cheers, Dave M

You can buy them in the UK too for £1.50 a pop.

Gareth.

Cook always prefers a Kludge first and then as a last resort purchasing the right thing :)

Couple of possibilites on Ebay (UK)?

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For those of us on the west side of the big pond, are you talking about shields or about mounting clips to hold the tubes in place when they are mounted other than pins down??

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For those of us on the west side of the big pond, are you talking about shields or about mounting clips to hold the tubes in place when they are mounted other than pins down??

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Not shields , these are output devices. We would call them retainers , just to keep the valve in its socket , especially when upside down like here. Of course shields also retain usually, dual function

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I went to the web site in an earlier message. THey had retainers and shields. I had never seen retainers of the type they showed. So I learned something new.