BassmanPaul

A few seconds without a load is not going to cause too much of a problem. For the record a short circuit across the output jacks is fine for a tube amp. Some manufactures short the output if a speaker cable is not plugged in.

Careful @Rich- you don't want to mangle your Wurzels! Over here they're known as Rutabagas. LOL

In the late Sixties I bought a Leak TL50 Plus. A mono power amp with 50W output from a pair of Cathode biased KT88s. I paid five quid for it. I built a single tube pre-amp, basically the normal channel of a Fender Bassman, to plug into the pre-amp socket on the Leak. It worked really well.

The cabinet had to be rewired to suit the 4Ω output impedance of the Bassman head.

I've owned two Bassman 50 heads. One was horrible into it's matching 2x12 cabinet. It lasted a weekend before I returned it. The second worked fairly well into a Marshall 4x12 but the cabinet had to be rewired to make it 4Ω.

@stereoplayer Those tray stands are great. We used to have a few. One each side if the stage holding up an Altec A7 with a massive Altec horn atop each. We never had a problem being heard! LOL

I tried running Stereo back in the early Eighties. For me it didn't work that well.

If you stack the Mark Bass cabs on top of each other you'll have better dispersion out in the room.

He hasn't been back since his first post!

Is the 1/15 a Backline GK?

Where the Deer and the Antelope play.

To work properly with an 8Ω 4x10 the 2x10 would need to be 16Ω for equal power sharing. That gives you a load of 5.3Ω. Both cabs would also need to work with the same polarity otherwise they will fight each other all night long. That said they still might not suit each other tonally.

I think not! Your cabinet seems to have had a driver change. Were the B&C drivers modelled to make sure that your cabinet was an appropriate fit for them?

There is no such word as ohmage unless it has an H in front of it! The correct word is Impedance. Never connect both outputs on an amplifier to the same speaker cabinet. Many amplifiers use two output modules that run in Bridge mode to produce more power than the single channel can provide. In Bridge, each channel is driven by. the same signal BUT with opposite polarity. Connecting them together will destroy both output modules.

@agedhorse Let's page the man himself.

Six EL34s would be correct.

It's kinder to your speaker cabinets if you use the Standby as you describe.

I may well have used the incorrect terminology. it was in the Sixties that I went to school and learned about tubes. The result is basically the same: the tube gets progressively damaged. There ARE a lot of myths, as I said earlier, concerning tube amps. On standby switches, the general consensus appears to be to use them as little as possible. Some folks even suggest not using them at all. When I'm using an amplifier that has a standby switch I turn the amp on while I put my bass on and then turn the Standby on. Essentially using it as an 'instant on.' EDIT: Between sets I turn the amp completely off. As regards moving a warm amp, the folks at the NTSB when probing a plane crash look to see if the filament of a lamp is broken. If it is then the lamp was NOT illuminated. If it's in one piece then it WAS illuminated at the time of the crash. Off topic I know but it does illustrate a point.

Leaving a tube amp on standby with heaters on but no B+ can lead to 'cathode stripping which damages the tubes.

There really are lot of myths surrounding tube amps. Their fragility is one. Them needing to be cooled to cold before being moved is another. Reasonable care in handling, as befits any quality piece of gear, is all they require. Leaving the amp on Standby. does cool the tubes but not as much as just turning the amp off.

To add: tubes run hot but they cool very quickly when switched off. Just cover the amp if it's raining - you don't want it to get wet! LOL

I'm glad you got your power back. Ontario sent twenty trucks with crews to aid with the restoration of the power lines. Hopefully everything will be back to normality soon.

How did you manage with Fiona? I hope you and yours were not too affected.

You turn the brute off at the end of the evening and load it into the truck to go home. Musicians have been doing this for decades.

That there is an auto sound amplifier and no practical use for bass guitar.