I have an old house (UK) that has been rewired about every 30 years - the sparkies always hide their detritus under the floorboards and leave the old wiring in situ. The interior of that amp looks just like under my floorboards does - multiple eras of different wiring. The brown and blue in particular are DIY store standard mains wires - IIRC those colours were introduced in the 70's (live and neutral) replacing the previous standard which was red/black. The terminal block also appeared to be 70s, or later, vintage rather than 60s. While there's nothing wrong with that blue and brown wire it's the sort of thing that would trigger warning bells if I found a tech using them in my amp - it's the kind of stuff I reclaim from table lamp mains cable for my incredibly dodgy projects - one step up from using foil as a fuse.
UK doesn't use a left angle socket...? 😁 Very cool example of a Vox😎👍 Can't wait to hear this when your satisfied with what needs doing 😃 Just a trivia point to share...Today is George Jetsons Birthday 😎👍 A man (cartoon) ahead of his time 😉 😎👍❤🖖
If the owner is interested in a better sounding speaker for it,and it’ll fit(I can’t recall if those had 10”) a Weber Blue Pup Alnico sounds fantastic with that circuit. I built a couple ac4’s out of Roberts reel to reels and the Blue Pup sounds like it was made for it. Breaks up beautifully.
Any reason you dont use blue loctite on some of the hardware Lyle? Also, you do have the tool for straightening legs on components, its the other end of your black pointer you use.
Blue won’t hold a transformer and red might but makes disassembly difficult in future. That little thing works for 1/4W resistor leads but not on large cap leads.
Maybe Whitworth for the nuts and bolts? I used to drive a 60's Humber hawk and you really had to have a Whitworth set, as Imperial or Metric were not correct - they'd work but be prepared for spanner rash. I think a 1/4" Whitworth was close to 1/2" imperial as the 1/4 was the diameter of the bolt not the nut.
@@PsionicAudio Yep.It's very common to find UK plugs with over rated fuses.1A and 2A are available but can be harder to find than 13,5 and 3 which are sold everywhere.
I probably would’ve taken the bracket off the transformer to gently hammer the bent piece back over something… But how messy doing that could be does depend whether they potted them with the cover on or not.
Whitworth is what I think you are thinking of . The old British motorcycles used it extensively I know because I had old friends that had triumphs and without those whitworth tools you can't work on them because like you said SAE and regular modern day metric won't work .
Whitworth thread pitch on the odd nuts used . A very odd British design . Well at least now they went to metric . Bit from pre WWII for motorcycles and such .
Ahhh, the old lapel mic on the brim of the hat trick.
Nice thinking, 99.
It gives the most consistent sound as I move around while working.
Your screen is glowing there. With no voltage on the plate your screen is now your anode and therefore glowing red hot and oscillating thermally.
I have an old house (UK) that has been rewired about every 30 years - the sparkies always hide their detritus under the floorboards and leave the old wiring in situ.
The interior of that amp looks just like under my floorboards does - multiple eras of different wiring.
The brown and blue in particular are DIY store standard mains wires - IIRC those colours were introduced in the 70's (live and neutral) replacing the previous standard which was red/black.
The terminal block also appeared to be 70s, or later, vintage rather than 60s.
While there's nothing wrong with that blue and brown wire it's the sort of thing that would trigger warning bells if I found a tech using them in my amp - it's the kind of stuff I reclaim from table lamp mains cable for my incredibly dodgy projects - one step up from using foil as a fuse.
You'd think they'd steal the copper like they do in Australia. Lol!
UK doesn't use a left angle socket...?
😁
Very cool example of a Vox😎👍
Can't wait to hear this when your satisfied with what needs doing 😃
Just a trivia point to share...Today is George Jetsons Birthday 😎👍
A man (cartoon) ahead of his time 😉
😎👍❤🖖
If the owner is interested in a better sounding speaker for it,and it’ll fit(I can’t recall if those had 10”) a Weber Blue Pup Alnico sounds fantastic with that circuit. I built a couple ac4’s out of Roberts reel to reels and the Blue Pup sounds like it was made for it. Breaks up beautifully.
11:15 WHOA! look at that screen grid glow!
Yeah, I said “plate” because at that moment my brain was consumed by “WTF?” Such a rare failure mode.
Old rats nest amps are such a 3D puzzle! Wire straightener pliers : PMC model PLR-0139. Jewelry versions waaay cheaper than Weller Erem 531e (10x!)
That's an interesting little amp.
I can’t wait to see how this amp turns out.
Any reason you dont use blue loctite on some of the hardware Lyle? Also, you do have the tool for straightening legs on components, its the other end of your black pointer you use.
Blue won’t hold a transformer and red might but makes disassembly difficult in future. That little thing works for 1/4W resistor leads but not on large cap leads.
How do you call 110 volts, when your wall voltage goes up to 125?
Just sent you an email about getting the JMI mod package for my AC30 TBX. Hope to hear from you soon if you have the bandwidth. Thank you!
There actually is a fuse. It's inside the "110v/220v" red plug on the control panel. I don’t know the fuse size name, but they're really tiny.
Maybe Whitworth for the nuts and bolts? I used to drive a 60's Humber hawk and you really had to have a Whitworth set, as Imperial or Metric were not correct - they'd work but be prepared for spanner rash. I think a 1/4" Whitworth was close to 1/2" imperial as the 1/4 was the diameter of the bolt not the nut.
If you need some whitworth spanners - let me know!
I sense some JMI magic is instore for us in the next AC4 video.
My old BSA had Wentworth
The old White AC cable is made in Ireland. It's pretty good cable.
@ 16:14 How did VOX handicap the amp?
I go through that either in this video or the one before.
Super cool
Good title for an album: Application of Force.
Very cool amp
A fuse is the mains plug.It's been a British standard since the 40's. We even call them '13amp plugs' over here.
Ah, but a 13A or 3A fuse will not protect an AC4. Needs a 2A at most.
@@PsionicAudio Yep.It's very common to find UK plugs with over rated fuses.1A and 2A are available but can be harder to find than 13,5 and 3 which are sold everywhere.
@@PsionicAudio Yes - the UK plug fuse is rated to protect the cord, not the appliance - so the amp should have a fuse appropriate to protect it.
I probably would’ve taken the bracket off the transformer to gently hammer the bent piece back over something… But how messy doing that could be does depend whether they potted them with the cover on or not.
Whitworth is what I think you are thinking of . The old British motorcycles used it extensively I know because I had old friends that had triumphs and without those whitworth tools you can't work on them because like you said SAE and regular modern day metric won't work .
Whitworth thread pitch on the odd nuts used . A very odd British design . Well at least now they went to metric . Bit from pre WWII for motorcycles and such .
I remembered also from a 750 Triumph I used to own. .
I used to see Whitworth threads in some high end British turntables such as Ariston.
Working on old British vehicles is a nightmare.
You need the king's ransom in old obsolete tools.
Whitworth? Like an old MG, you need whitworth sockets
You aught to be a car dent repair men to repair this amp.
Nut size: British Cycle?
There is also British Whitworth.