- A: TP301 (1956) 'The Design and Operation of Transistor D.C. Converters', Reprinted from Mullard Technical Communications Vol 2 No 17 February 1956

- B: TP306 (1956) T220R Circuit Design for Transistor Blocking Oscillators, August 1955

- C: TP304 (1956) 'Transistors in Relay Switching Circuits', Reprinted from Mullard Technical Communications Vol 2 No 19 July 1956

- D: TP307 (1956) T226R 'A Transistor Tester', February 1956

- E: TP308 (1956) 'An Asymmetrical Bistable Circuit using Junction Transistors', Reprinted from Mullard Technical Communications Vol 2 No 19 July 1956

- F: TP310 (1957) T225R 'Decade Counters using Junction Transistors', June 1956

- G: TP311 (1957) 'A 200mW Amplifier Employing Transistors', Based on articles printed in Mullard Technical Communications Vol 2 No 18 April 1956, Vol 3 No 21 February 1957

- H: TP312 (1957) 'Low-frequency Transistor Oscillators', October 1955

- I: TP316 (1957) 'Distortion in Transistor Amplifiers', Reprinted from Mullard Technical Communications Vol 2 No 22 March 1957

- J: TP323 (1957) 'Compensation for Changes in Base to Emitter Voltage with Temperature', Reprinted from Mullard Technical Communications Vol 3 No 24 May 1957

- K: TP333 (1957) T240R 'D.C. Amplifier using transistors and a silicon bridge modulator', November 1956

- L: TP332 (1957) 'Push-Pull Output Stages using Transistors Part 1 - Fundamental Considerations', Reprinted from Mullard Technical Communications Vol 3 No 24 May 1957

- M: TP335 (1957) 'Car Radio Receiver with Transistor Output Operating from a 14-Volt H.T Line', Reprinted from Mullard Technical Communications Vol 3 No 25 June 1957

- N: TP334 (1957) 'D.C. Stabilisation of Junction Transistors Potential Divider and Emitter Resistor Method Two-Battery Method', Reprinted (with minor amendments) from Mullard Technical Communications Vol 3 No 23 April 1957

- O: TP336 (1957) 'Push-Pull Output Stages using Transistors Part 2 - Practical Low Power Circuits, with a Note on Loudspeaker Resonance', Reprinted from Mullard Technical Communications Vol 3 No 26 October 1957

- P: TP338 (1958) 'Equivalent Circuits for Junction Transistors applied to types OC44 and OC45 used as i.f. and r.f. amplifiers, with a complete design for a six-transistor m.w./l.w. radio receiver', Reprinted from Mulard Technical Communications Vol 3 No 25 June 1957, Vol 3 No 26 October 1957 and Vol 3 No 27 December 1957

- Q: TP344 (1958) 'A stable Gain Transformer Coupled Transistor A.F. Amplifier For use in instruments, 'chopper' type d.c. amplifiers and transistor test gear', Reprinted from Mullard Technical Communications Vol 3 No 28 January 1958

- R: TP342 (1958) 'Heat Sink Design', Reprinted from Mullard Technical Communications Vol 3 No 29 March 1958

- S: TP348 (1958) 'Temperature Stability of Transistor Class B Amplifiers', Reprinted from Mullard Technical Communications Vol 3 No 29 March 1958

- T: TP345 (1958) 'Transistor Amplifier Stages Operating from 6, 9 and 12V', Reprinted from Mullard Technical Communications Vol 3 No 28 January 1958

- U: TP347 (1958) T247R 'A transistor d.c. stabilised power supply for laboratory use (0 to 30V, 0 to 100mA).', October 1957

- V: TP359 (1958) 'Phase-Operated Relay using Transistors for Power-System Protection', Reprinted from Mullard Technical Communications Vol 4 No 31 July 1958

- W: TP358 (1958) 'A 4.5W Sliding-Bias Amplifier using an OC16', Reprinted from Mullard Technical Communications Vol 4 No 31 July 1958

- X: TP369 (1958) 'The Design of Logical Circuits using Transistors and Square Loop Ferrite Cores', Reprinted from Mullard Technical Communications Vol 4 No 34 October 1958

- Y: TP371 (1958) 'Video Amplifiers using Alloy Junction Transistors', Reprinted from Mullard Technical Communications No 34 Vol 4 October 1958

- Z: TP370 (1958) 'Transistor 20kc/s Oscillator with 50mW Output', Reprinted from Mullard Technical Communications Vol 4 No 35 November 1958