Scientific Atlanta (Cisco) 1 GHz Combiner and PSU Teardown

[@inothome]

Scientific Atlanta, now there's a name I haven't heard in years! Nice look inside both units and that aluminum oxide was just crazy inside the amp.

[@KaizerPowerElectronicsDk]

Being made in Canada, maybe it's just ice and not aluminum oxide ;)

[@inothome]

@@KaizerPowerElectronicsDk LOL

[@gth042]

Permafrost

[@KaizerPowerElectronicsDk]

@@gth042 I should have saved it for the Christmas decorations.

[@gth042]

@@KaizerPowerElectronicsDk 🤣👍

[@mrDarktrooper]

The aluminum actually protected the circuit board by acting as a sacrificial anode, we see very little copper corrosion.

[@KaizerPowerElectronicsDk]

Had the screws, inside, just been brass instead :)

[@gammaleader96]

Interesting, cool to see, where cisco actually came from. I have seen a lot of those 75Ohm propably cable TV modules as well lately, seems like a lot of it reached its end of life around now.

[@KaizerPowerElectronicsDk]

In Denmark there has been a very aggressive roll-out of fiber to the premise, virtually eradicating cable TV/Internet, with matching prices and better performance. I even see a lot of CATV fiber equipment, which is more modern than this one, being scrapped.

[@dabdoube92]

Please give us more RF / Microwave