R=U/I : original lamp has 26R. You state 4.75/500mA can be used. Its 19R. Connected to the 8V in the receiver : I = U/R = 0,42A -> at 8V that makes 3.36W at 2.39W rated lamps. 4.75V or 6V lamps will burn way too bright and will not last long. Stick to 8V lamps -> and dont mix up resistance / current / voltage / wattage.
So all you really need to do is remove 3 screws that hold the terminal board that the bulbs plug into, not the whole housing. Pull back just the terminal board and the bulbs and holders come out of the housing. No need to pull the tuning cord. Pull the bulb holders from the board once you move it back. I replaced mine with cheap LEDs from amazon. 8 vac for all bulbs. The led wires are thicker than the bulb wires so I did not run the leads back through the outer holes like the bulbs were oriented. I pushed the LED leads through the inner holes and then partially installed the holder on to the terminal board posts and then wrapped the led leads around the post before pushing the holder all the way on. I had to adjust a couple to make sure they made good contact with the posts.
Thanks for the reply, led is the best but i would not know how to do that, maybe you can explain here in one ore more comments how you made the led lamps,
R=U/I : original lamp has 26R. You state 4.75/500mA can be used. Its 19R. Connected to the 8V in the receiver : I = U/R = 0,42A -> at 8V that makes 3.36W at 2.39W rated lamps.
4.75V or 6V lamps will burn way too bright and will not last long.
Stick to 8V lamps -> and dont mix up resistance / current / voltage / wattage.
So all you really need to do is remove 3 screws that hold the terminal board that the bulbs plug into, not the whole housing. Pull back just the terminal board and the bulbs and holders come out of the housing. No need to pull the tuning cord. Pull the bulb holders from the board once you move it back. I replaced mine with cheap LEDs from amazon. 8 vac for all bulbs. The led wires are thicker than the bulb wires so I did not run the leads back through the outer holes like the bulbs were oriented. I pushed the LED leads through the inner holes and then partially installed the holder on to the terminal board posts and then wrapped the led leads around the post before pushing the holder all the way on. I had to adjust a couple to make sure they made good contact with the posts.
You should shoe us this process via TH-cam because I would love to LED this thing
Thanks for the reply, led is the best but i would not know how to do that, maybe you can explain here in one ore more comments how you made the led lamps,
Thank you sir! your very creative!
shair00 see how i make my own bi-pin lamps: th-cam.com/video/K5o9pHDOfBo/w-d-xo.html
Hi, I'm trying to replace the tube lamps on my KR-6160. Is it a similar process?
Hey @jon I am curious, have you managed to changed your bulbs for the KR-6160? I am looking to do the same
Can I get away from removing the tuning wire on the KR-4600?
shair00 can't help you here
The back ground music makes it impossible to hear
thanks
yes i have it
I might have continued watching if it weren't for the music.
Your focussing is awful - I can't see the bulbs - it's just a blur
For what it's worth, 8 x 0.3 = 2.4, not 24. Same error throughout. (Luckily)
yes you are sharp! thanks