Game: Guess the mystery object !

[Hemlock_Mike]

A simple filler!

This is from long ago from the great yellow father!

Hmike

 

[anselm]

looks like a cap but of what?
gas tank?
radiator?

 

[Hemlock_Mike]

About 1.5" tall -- photography
HMike

 

[Coherent Light]

film canister 35mm

 

[Hemlock_Mike]

Coherent ---
Too simple !!! A Kodak 35mm film canister from years ago..
You got it.

HMike

 

[Coherent Light]

Some one else go my picture won't upload....pos computer

 

[GBD]

Heres one for you guys. I got a lot of these things:

To some in the hobby, very easy.
To others.. not so much

 

[Hemlock_Mike]

Deleted after picture posted.

 

[Prototype]

Something to do with HV?

 

[GBD]

Something to do with HV?

Yes and No. Depending on the application. most often low voltage in the industry.

 

[Hemlock_Mike]

Full wave rectifier?

HMike

 

[GBD]

Full wave rectifier?

HMike

Nope. Think switch.

 

[Hemlock_Mike]

Solid state relay.
HMike

 

[GBD]

Solid state relay.
HMike

Nope my good sir.

Here is a solid state relay in comparison to the mystery devices:

Was a good guess though.

 

[Hemlock_Mike]

IGBT --- Insulated gate bipolar transistor.

Optical isolator or Triac driver.

HMike

 

[GBD]

IGBT --- Insulated gate bipolar transistor.
HMike

YES! you get a cookie.

These are 200A 600V IGBTs in the SOT-227 package. (like how LM317 is in TO-220).
These have 2 common emitters, one collector and one gate.

Low voltage: they are often used in inverters or VFDs (variable frequency drives) for motors,
High voltage: I use them in a DRSSTC (dual resonant solid state tesla coil) and other fun stuff.

Your turn sir.