17 years pah - the one in the photo was fitted over 25 years ago now

17 years is 9600 and 9800 teritory (?) mere youngsters LOL

Oh right ya old git lol!

this is my current eldest

I'm thinking this is a vintage R5 or R5E? Circa 1981-2?

Vast improvement over the R4 which didn't even have a regulated PSU.

The battery would charge at 17volts!!

The bentley symphony was an excellent panel, anyone familiar with them will recognise the entry exit tones as being the same as Regalsafe ones.

Anyone ever worked on Revdun panels?

I'm thinking this is a vintage R5 or R5E? Circa 1981-2?

Vast improvement over the R4 which didn't even have a regulated PSU.

The battery would charge at 17volts!!

The bentley symphony was an excellent panel, anyone familiar with them will recognise the entry exit tones as being the same as Regalsafe ones.

Anyone ever worked on Revdun panels?

MX1, MX4 even an MX6 once lol but no this babies not even got a charging circuit

MX1, MX4 even an MX6 once lol but no this babies not even got a charging circuit

As I recall there used to be a link on those old A&Gs that you cut if you were using dry batteries.

The discolouration on that resistor on the RHS of the PCB is typical, I have never seen one without it!

Those MX1s were awful, you only had to look at one the wrong way and the processor blew!

I used to work for Computaguard (Chubb now), they used loads of old Revdun S9s and M9s, they were proper panels!

Wish I had kept some of the stuff I worked on in the 80s, 999ers with 8 track cartridges and even vinyl records!

The engineering was crude but incredibly reliable considering.