Fuses on a 230V VHT 2/50/2 from 2006

Power Amps 2/50/2
1

Hello,

I just would like to confirm if I got this right please. This is for the fuses on a 230V VHT 2/50/2 (model G-2502-S) from 2006:

  • Front panel : 0.5 A Fast-Blow
  • Back panel : 2.0 A Slow-Blow

Thank you.

Cheers

2

Melodioso,

That sounds correct to me. T500mA front, and T2A Slo Blo in the rear. It should definitely be on your rear panel. Possibly look like this: SB 2A. Please check the rear panel and verify that is what it is listing.

3

What is the actual number on the front of amp fuse
The half amp one I have got 1/2 amp fuses n they don’t work
Have a side that has blown but I can take b side n put in a side n will work

4

Hi Danny,

You are absolutely correct, the front and rear panels state what fuse should be used.

Thank You,

Terry

5

Hi Terry,

Thanks for the answer.

Also, I sometimes only connect ONE cab to the 2/50/2. In that case, the B channel is set to standby. But I worry that someone (and bandmate or even me not being careful) will hit the standby/on switch with no load connected to the power amp.

Are there “dummy load” that can be connected to prevent damage to the power amp ?

6

I guess that this would work ?

https://www.thomannmusic.ch/intl/harley_benton_pa_100_power_attenuator.htm

7

There is no need for a dummy load.

Just leave the unused channel on Standby and turn the volume down.

Even if some sound gets through by accidentally turning on the unused channel, the possibility of damage is practically non-existent.

Dave

8

Hi David,

Thanks for your reply. I always thought that it was mandatory to connect a cab (or a load) to the output of a power amp, so I learned something new. Still, I’ll simply put a tape to prevent accidentally turning on the B channel when no cab is connected to its output.

9

Don’t feel bad. That’s a common misconception.

In most cases an output transformer will fail either driving a short circuit hard enough and long enough to arc or overheat with or without a load connected, but only if its passing a significant amount of potential power in the process. It won’t fail simply because it’s shorted or unconnected even when a relatively small amount of signal is present.

There are exceptions of course. Marshall output transformers have a reputation for failing under moderate conditions. That’s probably the source of the rumors about output transformers in general.

Dave

10

Hey terry
I have the 2/50/2 stereo power amp can I buy some fuses from you guys
I have bought 1/2 amp fuses n they blow but can take the b side fuse n will work on a side

11

Hi Danny,

Please use this form to request parts.

Thank You,

Terry