VintageKustom.com
VintageKustom.com is your source for literature and information on the tuck-and-roll vintage Kustom amps from the 60's and 70's, as well as their related products such as guitars and organs . We provide a webboard for help with kustom gear history, technical information and repairs as well as discussions with other collectors.

Home » VintageKustom.com » Repairing Kustom Amps » Active Bass and K250 preamp damage
Show: Today's Messages :: Polls :: Message Navigator
Return to the default flat view Create a new topic Submit Reply
Active Bass and K250 preamp damage [message #27964] Wed, 20 January 2021 07:45 Go to previous message
stevem is currently offline  stevem
Messages: 4778
Registered: June 2004
Location: NY
Senior Member
Well over a year ago now while at rehearsal and using one of my basses with a 18 volt active preamp I damaged my selectone channel in one of my K250 heads when it started to produce a ton of hiss.

Just over the weekend I got to look into the issue and had to replace the 14 pin duel section IC chip to fix it.

So you folks with active preamps in your guitars and or using stomp boxes that can add to signal input levels in to the amp beware of driving these 250 and K150 heads with too much signal into them!

These amps where not made to need that hot a input signal level to drive them to full output wattage.

[Updated on: Wed, 20 January 2021 07:48]

Report message to a moderator

[Message index]
 
Read Message
Read Message
Read Message
Previous Topic: K250-1 bulbs in switches
Next Topic: Repair Inquiry
Goto Forum:
  

-=] Back to Top [=-
[ Syndicate this forum (XML) ] [ RSS ]

Current Time: Tue Dec 24 14:40:07 EST 2024