Hartke HA5500 troubleshooting

[ricothetroll]

Hi,

A friend of mine brang me that amp because the fuse kept blowing a few seconds after switching the amp on.

The schematic...

[jsolera]

Please Help!!

i need the Hartke HA3000 Schematic.

someone who can help me!

[Brian Swatton]

I've not had to find Hartke circuits before, I can't seem to find a company to contact even. Can someone help with the circuit or a pointer please? Thanks....

[rkscott7]

My power trannie is Bad on my Hartke HA 4000 Bass Head and I have already soaked a lot of work into it so i want to get it going. I called samson they no...

[schraedertr]

I have a Hartke LH500 head from the local high school jazz band. When they turn it on, it warms up a little while, works for 10 seconds or so and then quits....

[ribafish]

So...the tube in preamp died a few days ago, so I opened the thing up to change it...and I saw that the PCB should be the same as in its strogner brother,...

[ugufru]

Hello... I am a new member of this forum and am looking for more specific information about the Hartke Model 2000.

I have two of these amps,...

[j. river]

So in an unfortunate incident, two of my amps got blown up from connecting them via their speaker outputs while they were both on. My guess is that this blew...

[davidm]

Seems like there are quite a few knowledgeable techs here and I need some help.

I've been troubleshooting a friend's Hartke HA-3500. The amp...