Tiny inaccurancy on the -8 flightdeck

[medic89 6]

Hey guys,

sorry If I'm playing the wise guy now, but on the side glareshield of the VC on my 747-8 the lettering of the two knobs to adjust the brightness of the PFD and ND says "CRT", but those ain't CRT, the're LCD's. According to the FCOM should say "DSPL" (10.10.67);)

greeting Phil Tereny

[charliearon 3,017]

OMG!  Who stole the Cathode Ray Tubes?  Next you'll say they use transistors instead of tubes???😱  I must be getting old!

[downscc 1,327]

25 minutes ago, medic89 said:

Hey guys,

sorry If I'm playing the wise guy now, but on the side glareshield of the VC on my 747-8 the lettering of the two knobs to adjust the brightness of the PFD and ND says "CRT", but those ain't CRT, the're LCD's. According to the FCOM should say "DSPL" (10.10.67);)

greeting Phil Tereny

Ticket please Phil.... it will get lost in the forum.

Charlie.... I hate to break it to ya' man but even the transistors are gone for the most part and are replace with this new thing called integrated circuits.  I hear you.  While I was an electronics technician in the USAF there was a short period where I worked on tube, transistor and IC chip equipment all at once.  Of course back then the IC was something like a flip flop or a pair of logic gates and was the equivalent of two transistors on a chip.

[medic89 6]

Just now, downscc said:

Ticket please Phil....

will do!

[Steve Dra 7,579]

2 hours ago, downscc said:

Charlie.... I hate to break it to ya' man but even the transistors are gone for the most part and are replace with this new thing called integrated circuits.  I hear you.  While I was an electronics technician in the USAF there was a short period where I worked on tube, transistor and IC chip equipment all at once.  Of course back then the IC was something like a flip flop or a pair of logic gates and was the equivalent of two transistors on a chip.

We did a similar job in the service Dan.  In the Navy I went through an advanced C school where we learned all about all the terms you mentioned.  Haven't heard "flip flop" in a loooooong time...but I loved figuring out logic gates and where the signal would wind up on a circuit board.

Also enjoyed working out gate logic past the AND/OR gates and relished a challenging NAND, NOR, XAND, XOR gate schematic.

In the era of "there is an app for that" ...look up a game called "Circuit Scramble" on either your Apple or Android store.   If you liked doing that kinda' thing in the old days, you'll love the memories it brings back.

[Jude Bradley 659]

In my electronics training course back in the 80' we had to do wire-wrapping so that we at least knew what it looked like. 

I still have a lovely dolphin-shaped scar on my hand from when I spilled solder on my hand back in the 80's from the solder baths. 

 

[downscc 1,327]

30 minutes ago, Jude Bradley said:

I still have a lovely dolphin-shaped scar on my hand from when I spilled solder on my hand back in the 80's from the solder baths.

I can relate.  I  still have a scar on my right index finger from when I grabbed the scope probe that was inserted into a test point and my hand slid down to the metal rings and I came in contact with the B+ (ca. 250VDC for those not familiar with vacuum tubes, or valves as the Brits called 'em). That was in tech school, and I don't think it ever happened again.  I remember seeing a black and white photo on the wall of a HF site in the Azores of a guy reaching into the lower compartment of a transmitter. He was dead.  The photo was a warning that the B+ on those 45,000 W transmitter tubes would reach out to you if you got close enough.  Serious stuff.

[Jude Bradley 659]

Ouch, Yes I am familiar with valves/vacuum tubes as one of my first amplifiers was a Marshall 100W amp with EL-34''s (Impressed I can remember the name at my age 🙂
 

 

Edited October 8, 2018 by Jude Bradley

[charliearon 3,017]

2 hours ago, Steve Dra said:

We did a similar job in the service Dan.  In the Navy I went through an advanced C school where we learned all about all the terms you mentioned.  Haven't heard "flip flop" in a loooooong time...but I loved figuring out logic gates and where the signal would wind up on a circuit board.

Also enjoyed working out gate logic past the AND/OR gates and relished a challenging NAND, NOR, XAND, XOR gate schematic.

In the era of "there is an app for that" ...look up a game called "Circuit Scramble" on either your Apple or Android store.   If you liked doing that kinda' thing in the old days, you'll love the memories it brings back.

I remember all of the good "Sayings" for things like the resistor color codes and for common base, collector and emitter transistors.  Good ole Navy Avionics Fundamental School and AT-A School NATTC, Millington, Tenn.

I digress, this isn't the chat forum😄

[JRBarrett 3,049]

27 minutes ago, downscc said:

I can relate.  I  still have a scar on my right index finger from when I grabbed the scope probe that was inserted into a test point and my hand slid down to the metal rings and I came in contact with the B+ (ca. 250VDC for those not familiar with vacuum tubes, or valves as the Brits called 'em). That was in tech school, and I don't think it ever happened again.  I remember seeing a black and white photo on the wall of a HF site in the Azores of a guy reaching into the lower compartment of a transmitter. He was dead.  The photo was a warning that the B+ on those 45,000 W transmitter tubes would reach out to you if you got close enough.  Serious stuff.

I went through AF tech school at Keesler, AFB in 73-74. There was still a lot of vacuum tube theory being taught in the 18-week initial electronics part of the course. In the second half, when we were concentrating on the specific equipment of our AFSC specialty, we moved directly to 1st generation integrated circuits which were starting to be extensively used on the newest Westinghouse electronic warfare equipment being deployed to TAC fighter squadrons in the early 70s.

[JRBarrett 3,049]

12 minutes ago, charliearon said:

I remember all of the good "Sayings" for things like the resistor color codes and for common base, collector and emitter transistors.  Good ole Navy Avionics Fundamental School and AT-A School NATTC, Millington, Tenn.

I digress, this isn't the chat forum😄

“Bad booze rots our young guts but vodka goes well”.

And there was another popular resistor color code mnemonic that we were taught that I wouldn’t dare repeat here!😱

[downscc 1,327]

13 minutes ago, JRBarrett said:

I went through AF tech school at Keesler, AFB in 73-74.

Cool... I started earlier and attended Cryptographic school at Lackland (ugh) but was at Keesler in 75 for the Communications Officer course (I am a mustang, I jumped the fence).  I went back numerous times later when I became a liaison officer between tech training and the comm command... by then the fun stuff was long past. I ended my career in TAC as the chief of logistics for a combat communications unit where we deployed for Just Cause (Panama) and of course Desert Storm.

Bad boys **** our young girls but violet gives willingly?  Yeah, it was a different time.  Also Eli the Ice Man for voltage leads current in inductance and current leads voltage in capacitance.  I can't remember what I did yesterday!

Edited October 8, 2018 by downscc

[Steve Dra 7,579]

1 minute ago, JRBarrett said:

“Bad booze rots our young guts but vodka goes well”.

And there was another popular resistor color code mnemonic that we were taught that I wouldn’t dare repeat here!😱

Lol...i know that exact saying JR!

Black, brown, red, orange, yellow, green, blue, violet, green, white.....I think.

I was incarcerated at NATTC Millington too Charlie...good times Lol

[Steve Dra 7,579]

7 minutes ago, downscc said:

Bad boys **** our young girls but violet gives willingly?  

And....do you remember the tolerance mnemonic at the end of the resistance codes?

 

[downscc 1,327]

Silver and ...... no. That's gone.