Hello all........
I just acquired a Knight KG-400 Integrated 'tubeless' amp......and 'NO', it's not solid state.....lol.....just simply acquired without any tubes!! Sadly, this amp did NOT come with any info on tube types or placement as well. So, I'm thankful that the AK forums exist, as I was able to glean some info that has been helpful. So far I've determined that the amp uses either 6BQ5s or 7189 OTs, and all the other signal tubes are 12AX7s (with one 7025). I'm somewhat familiar with the 7189 vs the 6BQ5, and that's a subject for another thread. BUT, to say the least, I understand that there IS a difference, and the 7189 is a more robust tube with a higher plate voltage rating. I'm still unsure if this Knight amp is supposed to use the 7189s or will work properly with 6BQ5s, but if anyone can answer that questions, I'd like to know just which one it was designed to use. Also....what rectifier is specified for this unit? Ihave both a 5Y4 and a 5AR4, and would like to put the proper tube in the amp!! And finally, if anyone has a schematic, I'd really appreciate a copy!! I might also add that when I 'googled' the amp, I found that there is a website called Radiomuseum which was the first 'hit' on google for 'Knight KG 400 Schematic". In going to that link, MY amp came up in the photo.......NOT a 'similar' unit....but MY actual amplifier!! What a hoot! If you're interested, I can tell you how I confirmed that. I might also add that I purchased this amp with the hopes of restoring it and making a few dollars on it.......so if you've got any ideas on that subject, please send me a note. But, who knows....when I actually get a chance to HEAR this amp, I may want to keep it.....and it's being 'famous' and all doesn't hurt any.....lol. Beyond that....as always.....I appreciate any help that can be offered!! Kind Regards to all........Tom D.
I just acquired a Knight KG-400 Integrated 'tubeless' amp......and 'NO', it's not solid state.....lol.....just simply acquired without any tubes!! Sadly, this amp did NOT come with any info on tube types or placement as well. So, I'm thankful that the AK forums exist, as I was able to glean some info that has been helpful. So far I've determined that the amp uses either 6BQ5s or 7189 OTs, and all the other signal tubes are 12AX7s (with one 7025). I'm somewhat familiar with the 7189 vs the 6BQ5, and that's a subject for another thread. BUT, to say the least, I understand that there IS a difference, and the 7189 is a more robust tube with a higher plate voltage rating. I'm still unsure if this Knight amp is supposed to use the 7189s or will work properly with 6BQ5s, but if anyone can answer that questions, I'd like to know just which one it was designed to use. Also....what rectifier is specified for this unit? Ihave both a 5Y4 and a 5AR4, and would like to put the proper tube in the amp!! And finally, if anyone has a schematic, I'd really appreciate a copy!! I might also add that when I 'googled' the amp, I found that there is a website called Radiomuseum which was the first 'hit' on google for 'Knight KG 400 Schematic". In going to that link, MY amp came up in the photo.......NOT a 'similar' unit....but MY actual amplifier!! What a hoot! If you're interested, I can tell you how I confirmed that. I might also add that I purchased this amp with the hopes of restoring it and making a few dollars on it.......so if you've got any ideas on that subject, please send me a note. But, who knows....when I actually get a chance to HEAR this amp, I may want to keep it.....and it's being 'famous' and all doesn't hurt any.....lol. Beyond that....as always.....I appreciate any help that can be offered!! Kind Regards to all........Tom D.
