This thing is really dirty !!!

The clean up will have to wait till next weekend...

 

What do you use to clean up the amps? How do you glue the tolex back down?

 

Warm water, dish soap and a brush. Fabric cleaner for the grill cloth. Contact cement to glue the tolex down. Lots of elbow grease…

 

Microfibre cloths will reduce the elbow grease a bit....

 

Nice! Looking forward to seeing another YBA get cleaned up.

 

Here are some pics of it coming in... these thing really need a good cleaning !

 

Love the 810 cab, its my favorite !

All the speakers are original.

 

So I guess chicken head knobs were on 65 and earlier YBA1s?

 

Chicken head knobs were from 1964 to 1967... The number circle is wider for the chicken head knob, the circle got smaller around 1969.

This amp should have chicken heads on it, the current knobs are just generic replacements... they are not Traynor knobs.

Check the difference, 1967:

1969:

Also, the 1969 and forward model says Traynor Bass Master on the front. The 1968 and prior sz Bass Master only....

And different logo also...

 

Ok, more differences then I ever noticed! Seeing them did by side, I might've spotted something else, "Range Expander" on the top after 68 vs the bottom.


I guess pre 68 is script logo?

 

I guess pre 68 is script logo?

Pre 67

 

I can't wait to see the "after" pictures! 😎

 

That’s really cool.

 

I took the time to do some cleaning today. Here is the grill before cleaning:

Here is my cleaning kit:

So I hose down the entire grill cloth, spray a ton of shout on the entire grill cloth and use my brush very lightly to scrub the material...

Here you see the extra water running down from the brushing:

I then wait 10 minutes, rince with the hose and repeat the entire process a second time.

 

Très très beau travail , bravo !

 

 

Fixing amps is a good hobby. To have a bussiness, not IMO.
A technician friend I introduced to repairing amps and who became very competent and started a business.
The success was not there

Amps owners don't want to pay what is worth.

 

Fixing amps is a good hobby. To have a bussiness, not IMO.

Amps owners don't want to pay what is worth.

I agree, people don’t like to pay. I spent 4 hrs cleaning the amp yesterday, it’s a big ass cab mind you and it was very , very dirty. I cleaned to exterior only, will be breaking the head apart today.

 

Here are a few pics after the clean up yesterday.

 

Some more...

 

This is one hell of a nice set up !

 

That is pretty sweet!

 

Is the exact grill cloth still available?

 

Yes, from L&M.

 

Its so humid today that I decided to stay inside in the AC. Broke the YBA-1 apart to document everything.

Huge transformers.

Can caps are dated Jan 1967, wonder what the 10:50 means on the ide of the chassis?

Very large OT but its not the first version of the OT which should have BT2 on it.

The PT is the very first version still with BT1 on it and also has the amp serial number stamped on it.

 

wonder what the 10:50 means on the ide of the chassis?

View attachment 377209

That's 4:20 in Australia.

 

I was expecting the chassis to be more nicotine trained but its not that bad.

Pre amp tubes.

Dont know what the power tubes are ?

General gut shot !

1483 ?... will eventually figure all these numbers out.

 

Nice amp.
Best is to put new power supply filter caps.

YBA1 I fix few weeks ago. It realy need those parts

 

Nice amp.
Best is to put new power supply filter caps.

YBA1 I fix few weeks ago. It realy need those parts
View attachment 377222

Trust me, the amp will get a tune up !

Nice job on the amp !

Caps are leaking inside allready:

Broke it open the make a list of things to get !

Not a fan of making holes to install clamps mind you... Not on my amps that is...

 

I dont recall these stamps in my other Traynors ...

Tested.

Inspected.

Inside cap is dated March 1967

Everything looks stock

 

Lots of nice mustards in here.

Rect.

The great thing about having the very first power transformer (BT1) is that you will have the leads for installing a tube rectifier on it ! Here you see both leads cut but still present.

I could make this amp tube rectified.

same goes for the output transformer, it has a cut lead. I would imagine its for a 4ohm tap.

 

It would be a book written in French that would be necessary because in English everything has been written about amps. Marshall, Fender Garnet, Traynor amps, to name a few, are all similar.
And except for Traynor, they have their books.

 

As some would say in la
Belle province: dat ting will move som hair!!

 

Hell yaa !!!

Going to pick up some caps today to change those 2 small leaking ones and will be jamming on it. Major heat wave here at the moment so all widows closed and AC going. Neighbor's wont complain as much !

Still impressed at how loud this little head is with a proper cab.