01-20-2023, 07:19 AM
You can still experiment, just think of it as a fancy Model 20 3 dial set. Fortunately brass pulley and bands from later sets will work. Unfortunately they go for big bux.
These things are real simple. Similar to earlier AK sets, however, I think that the Radiola 16 competitor to this set is a better set. The things you need to check:
The pulleys and bands for the caps (Oops, you checked that already). I don't think that there is an AK35 with good ones on them. Funny, my 40 is fine. I dunno if they are pot metal or brass. I have 2 AK 35s, a Crosley 601 Bandbox and my dad's Lionels (Standard gauge NY Central, ca 1922), all with bad pot metal. I found wheels for the loco (the rest of the train set bodies are tin), but the bases for the gates and signals are all pot metal and crumbled. Funny, the streetlights are all good. Pot metal is hit or miss re quality. Attics and barn lofts are murder on it. There was an article on the internet from a guy that restored a Crosley bandbox, rebuilding all the caps, making pulleys and even carving the block for the tuning knob pinion and shaft.
The audio transformers tend to open. Ohm them.
The Grid Leak is likely bad. Just tap in a 2 Megohm resistor
The 2 caps for the RF Amps have 1K wirewound resistors that tend to open. These were meant as suppressors for oscillation instead of paying for the Hazeltine Neutrodyne patent.
I haven't found open RF coils on these sets, but it is worthwhile to clean and check them.
This is a rather flexible set as the C- for the Audio Output is separate from the C- for the 1st Audio amp. This is so the user had a choice of using an 01A, 112 or 71 for the output.
You likely know all of this. I expound incessantly in the interest of anyone else working on their first AK or similar radio.
These things are real simple. Similar to earlier AK sets, however, I think that the Radiola 16 competitor to this set is a better set. The things you need to check:
The pulleys and bands for the caps (Oops, you checked that already). I don't think that there is an AK35 with good ones on them. Funny, my 40 is fine. I dunno if they are pot metal or brass. I have 2 AK 35s, a Crosley 601 Bandbox and my dad's Lionels (Standard gauge NY Central, ca 1922), all with bad pot metal. I found wheels for the loco (the rest of the train set bodies are tin), but the bases for the gates and signals are all pot metal and crumbled. Funny, the streetlights are all good. Pot metal is hit or miss re quality. Attics and barn lofts are murder on it. There was an article on the internet from a guy that restored a Crosley bandbox, rebuilding all the caps, making pulleys and even carving the block for the tuning knob pinion and shaft.
The audio transformers tend to open. Ohm them.
The Grid Leak is likely bad. Just tap in a 2 Megohm resistor
The 2 caps for the RF Amps have 1K wirewound resistors that tend to open. These were meant as suppressors for oscillation instead of paying for the Hazeltine Neutrodyne patent.
I haven't found open RF coils on these sets, but it is worthwhile to clean and check them.
This is a rather flexible set as the C- for the Audio Output is separate from the C- for the 1st Audio amp. This is so the user had a choice of using an 01A, 112 or 71 for the output.
You likely know all of this. I expound incessantly in the interest of anyone else working on their first AK or similar radio.
"Do Justly, love Mercy and walk humbly with your God"- Micah 6:8
Best Regards,
MrFixr55