Ken, Remove the covers from your 454 scope and take a look from the point of view of access to the inner assemblies. I wonder if you still say that it is well designed?. Deliberately threading bunches of wires (small loom) through round holes in brackets or sub panels is weird. Why not slot holes to the end of brackets/ sub assemblies/metal panels so that the cable loom or wires can be slipped out of the slot if a subassembly has to be moved. Threading wires through round holes in small bits of metalwork so that they are tied in, I don't like that sort of design. No thought for the non Tek trained serviceman.
Agreed.
I settled on the 465 myself. The first was a goer with problems. The little U shaped contacts that Bill Turner spoke off. The second was cosmetically very nice but dead. Shorted tantalum on the 15V suppluy. The third was partly robbed of bits. Even had an IC fitted back to front. All three are working nicely now. I enjoyed repairing them. You can get access to most of the 465s innermost parts. Not a nightmare like the the 454 and yet the 454 gets a great right up on many websites. I don't know why! Sorry Ken if I appeared to jump on you.
In regard to the old tube monsters, I gave two of those away to another enthusiast. 533A and 549. Tubes cost a lot of money, I just could not afford to restore them but the other chap is dead keen to get them working. He has contacts in the US who will send him parcels of junk picked up from ham field days and trash and treasure markets. He has put in his list of wanted items to his friends.
All good fun!
Regards, John Crighton Sydney