UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Chris55000 · 4th Jun 2018, 8:19 pm

Hi!

I'm thinking of an overall review of all my component symbol sizes and proportions used in my SPlan 7.0 drawing software, as I feel the ones supplied as standard are much too large and "clunky" - you can't get much more than a 555 timer circuit on a landscape A4 sheet!

Most manufacturers could draw something like a 6 or 7 valve AM/FM receiver on an A4 landscape template - can anyone suggest:-

1) Suggested dimensions for resistors, capacitors and inductors;

2) Recommended diameter for transistor-envelopes;

3) I want to make thermionic-valves exactly as per Newnes/PW style (rectangle with two half-circles) - can anyone recommend a suitable arc-radius for the semicircles?

The drawing software has a basic grid of 1 mm, and sub-divisions of 0.5 mm, 0.2 mm and 0.1 mm are available. There is both "snap to grid" and "snap to adjacent object" options available.

The A4 drawing space is about 150 mm high by about 250 mm wide, after margins and title-block are deducted!

Ideas and suggestions?

Chris Williams

4th Jun 2018, 8:19 pm	#1
Chris55000 Nonode Join Date: Aug 2007 Location: Walsall Wood, Aldridge, Walsall, UK. Posts: 2,868	Circuit Symbol Sizes and Proportions? Hi! I'm thinking of an overall review of all my component symbol sizes and proportions used in my SPlan 7.0 drawing software, as I feel the ones supplied as standard are much too large and "clunky" - you can't get much more than a 555 timer circuit on a landscape A4 sheet! Most manufacturers could draw something like a 6 or 7 valve AM/FM receiver on an A4 landscape template - can anyone suggest:- 1) Suggested dimensions for resistors, capacitors and inductors; 2) Recommended diameter for transistor-envelopes; 3) I want to make thermionic-valves exactly as per Newnes/PW style (rectangle with two half-circles) - can anyone recommend a suitable arc-radius for the semicircles? The drawing software has a basic grid of 1 mm, and sub-divisions of 0.5 mm, 0.2 mm and 0.1 mm are available. There is both "snap to grid" and "snap to adjacent object" options available. The A4 drawing space is about 150 mm high by about 250 mm wide, after margins and title-block are deducted! Ideas and suggestions? Chris Williams __________________ It's an enigma, that's what it is! This thing's not fixed because it doesn't want to be fixed!