jonboy55
Well-Known Member
Jon, since you are the de facto expert on Fisher consoles from this period let me ask you if the following jives with what you've found in your consoles.
My database indicates the K-15 and the K-100 chassis were introduced during the 1957 model year on Fisher's Custom Electra and Custom Electra II consoles, respectively. Both were discontinued by 1958 which would tend to make them rarer than the K-14 which ran from 1955 through at least part of 1957 on the earlier Custom Electras.
Which of these chassis do you have in your collection and what are the differences?
Well, I'm really not an "expert" on these but I've worked on both the Fisher K-14 and K-100 chassis. I own 2 Custom Electra's with the K-100 chassis. The cabinets are the Normandy model.
About a year and a half ago I met a local man who had a Fisher Custom Electra with a K-14 chassis that he originally purchased in 1955. It wasn't working and he asked me to repair it. I obtained a copy of the service instructions for a K-14 chassis which says "Custom Electra - Series K-14". On the poor photocopy of the service instructions someone had hand written K-15 on the schematic page. About a year ago someone sold a Custom Electra on E*** with a K-15 chassis. The photos of that chassis looked exactly like the K-14 I had worked on. The dial glass on both these models say "Custom Electra" on the glass. There are 4 indicator lights on the K-14: TV, Phono, FM, and AM. The K-14 has 6 knobs but its been so long since I've seen the chassis I'm not sure of the applications. The far right knob controls the station frequency and they made a big deal about the "Z-Matic" control. I didn't feel the "Z-Matic" control did much of anything.
The K-14 chassis has the following tubes:
1. 6BQ7
2. 6CB8
3. 6BA6
4. 6BA6
5. 6BA6
6. 6AL5
7. 6BQ7
8. 6E5
9. 12AX7
10. 6BA6
11. 6BE6
12. 12AX7
13. 12AT7
14. 12AX7
15. 6V6
16. 6V6
17. 6V6
18. 6V6
19. 5U4
The K-100 chassis has the following tubes:
1. 6CB8
2. 6U8
3. 6BA6
4. 6AU6
5. 6AU6
6. 6BA6
7. 6BE6
8. 12AX7
9. 12AX7
10. EL37
11. EL37
12. 12AX7
13. 5V4
14. 6X4
15. EM35
The K-100 chassis has 6 indicator lights: Aux 1, Aux 2, Tape, Phono, FM, and AM. The K-100 Selector switch has 9 positions: AM, FM, AES, RIAA, LP, NAB, Tape, Aux 1, and Aux 2.
The K-100 chassis has 5 knobs: selector switch, volume level/loudness control (4 position), tone control - bass/treble, on/off, and station control.
Both my models also have Presence and a Brilliance controls in the upper left and right corners of the front panel.
On the K-100 chassis the "Custom Electra" words are on a plaque on the wood (I own 2 of these models), not on the dial glass.
Let me know if you have any questions.
Sorry, if this is too much information.