Traynor YBA-1A Mark II paper fusing label

[Mick Bailey]

My 1973 amp has what's left of a small paper label inside, pasted to the chassis right by the fuse holder. A previous owner has scratched most of it away - anyone got a picture of one?

Looks like it would have read something like "Replace fuse with correct type and rating".

[loudthud]

I believe an amp from that year would have originally had a circuit breaker.

[Mick Bailey]

That's the label! I can see from the fragments of my original that it matches.

Now, here's a thing; my rear panel is printed up for a fuse "3A slow blow - disconnect supply cord before replacing fuse" and the chassis cutout matches the fuseholder too. Also, my amp has the two diodes across the OT primary and I thought these were deleted before 1973.

My amp is a factory 240v version, so I wonder if they fitted those with fuses instead of breakers. But why leave the breaker label in for US/Canada? Unless the label was scratched off by the factory when they fitted out the amps for export.

[loudthud]

The Traynor amps I am familiar with were made for the US/Canadian market. They all had an "Accessory Plug" (convience outlet) on the back and a Ground switch (death cap). An amp made for a foreign market shouldn't have these things. Are there holes in the chassis and/or back panel for them? The 73 YBA-1A that I snapped the pic of says "Circuit Breaker Press to Reset" and below says "Disconnect Supply Cord Before Opening". Near the serial number there is a CSA logo and it says "115V 60Hz 2A LR21877". Other older amps that were originally equipped with fuses say "Fuse 5 Amp" over the fuse and "Disconnect Supply Cord before replacing fuse" under the fuse.

I don't know why your amp has the sticker. Amps were probably made in batches and a batch for export might not have been that common. It might have simply been a mistake made by someone that didn't know any better.

[Mick Bailey]

Mine still had the original death cap, which is unusual for 240v. Most other amps still have the switch but nothing wired to it. No cutout for the accessory plug.