Dating a fender bassman 100
The following graph (from reference 1) shows the frequency response for the bright channel input (solid) and the normal channel input (dotted) for volume settings of 100%, 50%, 25%, 12.5%, and 6.25%.
The code follows the format: = a number from 1 - 52 indicating the week of manufacture.The Marshall Bluesbreaker and other early models also use the Bassman preamp.The Marshall JMP50 Model 1987 splits the normal and bright channels into separate circuits.The amp is running a tube rectifier now but also comes with solid state rectifier speakers are original. The date code from the QA sticker indicates it was made in July of 2001.Here is the Amps Info ---------------------- Fender 59 Bassman Tweed Reissue Amp 4X10(Not the LTD) Made in: Corona Ca. Hope this helps you out, kcbuck Lou: I use Blue Book values and there are not any sites that I have found that will help you value your guitars; Electric or Acoustic or your amplifiers for free, so I purchased those Blue Books to provide a free service service to our Members and Guests.