this is best done with the amp powered up wearing gloves and only touching things with a chobstick or other non conductive probe unless you really know what you are doing. Nice video and good survey of the major parts and nice descriptions.
Hi.. I've got a Hartke Hd25 watt bass amp and after about 8 months of playing and sounding great it would ( after playing for about 5 to 10 minutes) the sound would go flat and the beefy sound it should have would be gone. Could it be something heating and expanding maybe losing contact with a component? I had sent it back to the shop I bought it from and after 5 weeks got it back apparently fixed but it wasn't. Great content by the way.
this one is a 3500 and calls for a slow blow fuse on the back panel. It must be older cuz the toroidal xformer. The later hartke looks like they have a core type xformer and start calling for a Fast blow and dont print out both fuse types on the back, just a recommendation for either 120 or 240 mains. Not both. Crack open the user manual and it specifically states 10 amp fuse for a 5500 on 115, then makes no mention of slow or fast blow (T or F). The 3500 and 5500 now share a manual. HOWEVER the schematic says 12 amp fuse for 115 mains. Check the back of the unit and its printed recommendation is a F12AL for 115 on the 5500. If youre confused, you should be. Theyre over there at Hartke just swapping Fast blows for slow blows with no real circuit redesigns. Giving wrong fuse amp recommends, not printing both fuse types on their shells. Doubling up the manuals. NOT GOOD. Since a major point of contention is the fuse is the start of a circuit design. Hartke is is in the business of designing and building circuits. Then they have this major lack of attention to detail. Like "I dunno bro, it like..doesnt even matter"..If you jammed a 10 amp slow blow into a 5500. Switched it out for a fast blow 10 amp and all your fuses fried, thats not you. thats them. They told you to do that in their boot leg user manual. Bunch of prison custers. Thats not high end quality control $1200 stuff right there made in USA. Ive literally woken up the engineers sleeping at 4am on a USA factory line(not Hartke..as amazing as it is anything is manufactured anywhere in a 3rd world USA besides poop cakes to light your cooking fires). then they wake up all angry saying "Im a veteran of foreign war, Im an electronics ENGINEER! blablablah"...well are you ipc 610? because this isnt a class 2 product...GET IT TOGETHER!!
Knowing almost nothing about this stuff, I can follow what you're saying pretty well. Thanks for sharing nephew.
Grandad got me started, the electrical apprenticeship taught me the theory.
this is best done with the amp powered up wearing gloves and only touching things with a chobstick or other non conductive probe unless you really know what you are doing. Nice video and good survey of the major parts and nice descriptions.
Safety is always first
@@JeremyPatMartin Thanks for the video. You did a nice survey of the major systems while checking it out.
@@auxpower13 thankyou for the kind words
Hi.. I've got a Hartke Hd25 watt bass amp and after about 8 months of playing and sounding great it would ( after playing for about 5 to 10 minutes) the sound would go flat and the beefy sound it should have would be gone. Could it be something heating and expanding maybe losing contact with a component? I had sent it back to the shop I bought it from and after 5 weeks got it back apparently fixed but it wasn't.
Great content by the way.
Your tube is likely starting to burn out
Hay Jeremy, I need to help with my amp.I have a Hartke ha2500 and I am replacing the ac Jack. I need a wiring picture show me where everything goes.
I do a pretty good zoom in on them all
Hi Jeremy. Would it be possible to connect two cabinets to that amplifier? 4x10 and 1x15. Only having a 4ohm back output ?
It is powerful enough to push them
My HA3500 keeps blowing the glass fuses in the back. Any ideas?
You have a ground fault and you have to find it
Check your power plug first
Hi...Is there any way to umount the front panel to change a potentiometer?
As far as I know you can only access through the back
I really need your help
I'm listening
I need you help
❤❤❤
Can you take pictures of the wiring on your amp. It’s the same.
I took an entire video of them 😏
this one is a 3500 and calls for a slow blow fuse on the back panel. It must be older cuz the toroidal xformer. The later hartke looks like they have a core type xformer and start calling for a Fast blow and dont print out both fuse types on the back, just a recommendation for either 120 or 240 mains. Not both. Crack open the user manual and it specifically states 10 amp fuse for a 5500 on 115, then makes no mention of slow or fast blow (T or F). The 3500 and 5500 now share a manual. HOWEVER the schematic says 12 amp fuse for 115 mains. Check the back of the unit and its printed recommendation is a F12AL for 115 on the 5500.
If youre confused, you should be. Theyre over there at Hartke just swapping Fast blows for slow blows with no real circuit redesigns. Giving wrong fuse amp recommends, not printing both fuse types on their shells. Doubling up the manuals. NOT GOOD. Since a major point of contention is the fuse is the start of a circuit design. Hartke is is in the business of designing and building circuits. Then they have this major lack of attention to detail. Like "I dunno bro, it like..doesnt even matter"..If you jammed a 10 amp slow blow into a 5500. Switched it out for a fast blow 10 amp and all your fuses fried, thats not you. thats them. They told you to do that in their boot leg user manual. Bunch of prison custers.
Thats not high end quality control $1200 stuff right there made in USA. Ive literally woken up the engineers sleeping at 4am on a USA factory line(not Hartke..as amazing as it is anything is manufactured anywhere in a 3rd world USA besides poop cakes to light your cooking fires). then they wake up all angry saying "Im a veteran of foreign war, Im an electronics ENGINEER! blablablah"...well are you ipc 610? because this isnt a class 2 product...GET IT TOGETHER!!