First timer here with a question about my Zenith Avanti (?) Stereo Console TV

[mercury6768]

Hello, everyone. I've been reading this site for sometime and now have need of your help.

Back in 2007 I bought a really great midcentury Zenith stereo/console Chromacolor II TV. I think it is from the Avanti series; I have seen others like it, but none with the stereo feature, which is very cool. It has a white cabinet on a wide, white plastic pedestal with a rosewood top. By pressing two buttons under the front lip, the back 1/3 of the top pops up to reveal an AM/FM stereo and 8-track tape player. (Photos are below.)

The problem is that it will not power up. When using the remote control, it turns on for just 3-5 seconds, but then trips the breaker. Activating the breaker (in the back, what a great feature) causes the same behavior. Based upon what I've read here, it needs a new voltage tripler.

So, I have two questions:

first, how does one determine the model number or chassis number, and

secondly, once I determine that information, how do I locate the correct voltage tripler?

Thanks in advance for any information you can share. I love this set and want to get it operational again!