Does anyone else have a soft spot for the 73 Stock's noises?

[hummusn]

I've always liked the 1973 Stock's hisses, beeps, and traction motors - for me their sounds will certainly be the main things I'll miss about them when they're gone, particularly as I use the Picc quite often. Does anyone else feel the same way?

(Although for me, nothing compares to the old D Stock's noises)

[kevraul26]

Lol some of those old trains feel almost alive with their hisses and moaning. I have a soft spot for the A stock and their rhythmic clattery speed.

[hummusn]

Apr 12, 2024 13:05:54 GMT kevraul26 said:

Lol some of those old trains feel almost alive with their hisses and moaning. I have a soft spot for the A stock and their rhythmic clattery speed.

I totally agree! I loved the A stock’s whistles too, short blasts from them sounded like little birds - quite fitting for a line that goes out into the countryside.

[melikepie]

Having grown up near the Piccadilly Line, I will definitely miss them, just like the 313s

[towerman]

Miss the 62TS esp the DHC compressors.They were much better than the pile of c**p that replaced them.

[Alight]

Agreed. They somehow aren't as noisy as other lines also. Or screechy/whiny like the Northern line!

It's a plain yet nostalgic sound compared to the more artificial-sounding S stock motors, for instance.

[spsmiler]

I miss the flare-sided subsurface trains* and Class 306 emus.

*For these I only knew what I think was PCM / camshaft control gear on the CO / CP trains with COP trailers. I am too young to have known the Metadynine (spelling?) control gear from when they were first built, nor the versions which were classified as Q38.

I also recall that the sound was different for R stock because their fluorescent tube lighting control gear emitted a constant 'whine', even when calling at stations.

The slam door BR trains, and 1960ts (onwards) LU trains are a different story as I have video and sound of these.

btw, I also recall how the lights would dim slightly when trains with bulb lights pulled away from rest.

[starlight73]

I think the 1973TS are some of the last trains to have low pitched DC motor sounds (as well as the 1972TS & converted D stock?)

[Dstock7080]

Only the two D Stock RATs retain DC motors, all the VivaRail conversions, 230/484, have AC motors.

[metman]

I too loved the A stock. The 1973 stock has a much more modern (or sorts) camshaft arrangement and sounds less busy then the older 1972 stock.

I will miss the 1973 stock. They still seem to be very effective albeit a little limited on capacity.

[Dmitri]

Apr 13, 2024 17:15:23 GMT spsmiler said:

Metadynine

Metadyne.

[t697]

Apr 15, 2024 13:04:08 GMT metman said:

I too loved the A stock. The 1973 stock has a much more modern (or sorts) camshaft arrangement and sounds less busy then the older 1972 stock.

I will miss the 1973 stock. They still seem to be very effective albeit a little limited on capacity.

The 1973TS reverted to a single camshaft machine per motor car, but with more switch contacts to accommodate motoring and rheostatic braking.  It notches 'up' to Full Series and 'back' to Full Parallel.  Just like a motoring only one.  Then 'up' and 'back during a complete rheo brake sequence, finishing at the start position with the circuit configuration assisted by separate contactors.

67TS, 72TS and C stock had/have two camshaft machines per motor car.  One each known as Series and Parallel camshafts.  When the Series one reaches Full Series and notching continues into parallel, the Parallel one then notches up and the Series one runs back to its start.  Thus the rather manic clicking at that time.  The Parallel camshaft runs back after the scheme reaches Full Parallel which is retained by contactors.  Hence further manic clicking!

In rheo braking each camshaft runs up in turn and stays there until braking is either released or 'de-proves' in last notch, then both machines run back - more crazy clicking. 

[brigham]

I've always loved the iconic sound of DC electric traction, right from childhood days of peering into the winding house of the Tees Transporter Bridge.
It's all about the seemingly relentless torque through straight-cut gears.
The sound made by today's AC 'chopper' control equipment is just a hideous parody of it.

[firestorm]

A small video of 1973 tube stock PCM testing at work, not by me but it was uploaded to the company portal and thought a few people would appreciate the sounds.

[principlesdesigner]

Wonderful