(First issue July 16, 2000; last revision January 13, 2007)

- TR = AM only (MW or MW+SW or MW+SW+LW): see TR-610

- TFM (EFM with Esaki diode) = AM+FM: see TFM-110, EFM-117

- TRM = marine band (SW 1.5-4.5 Mc): see TR-88 (MW only), TRM-88 (MW+SW marine band)

- TR-C or TFM-C = AC clock: see TR-C290, TFM-C444

- TRW = DC watch: see TRW-621

- 1R-8R (MW only) and 2F-8F (MW+FM). The first digit speaks of the size of the radio: 1 for the smallest (see 1R-81), 8 for the largest (see 8R-42, 8F38W). C as the third digit = clock (see 8RC-52, 8FC-55)

- ICR = Integrated circuit AM: see ICR-100

- ICF = Integrated circuit with FM: see ICF-1100. As in the previous examples (TR-C290, TFM-C444, 8RC-52, 8FC-55), an additional C means clock (see ICF-C10W).

Sometimes an additional digit is present for mono (ICF-M) and stereo (ICF-S)

- In Ireland they used to add "zero" to the corresponding Japanese model (see TR-609 and TR-6090; TR-712 and TR-7120) but TR-608 is different from TR-6080

- Sometimes (starting from the first model and ending in 1965) the first digit after TR- or TFM- is the number of transistors (see TR-510 = 5 transistors; TR-610 = 6 transistors)

- CF stays for cassette (radio + tape recorders): see CF-300. Sometimes an additional digit is present for mono (CFM) and stereo (CFS)

- CRF = multiband, transoceanic: see CRF-230

- MD = car radios

- MR = matrix sound: see MR-9100

- SRF = ministereo: see SRF-201

- ST (without amplifier) and STR (with amplifier) = tuner: see ST-80, STR-160

- STA = stereo adapter: see STA-38 which is the stereo adapter of the 8F-38W

- Last letter:

- A (=Advanced, Ameliorated?) stays for an improvement: see TFM-121 (160mW) and TFM-121A (300 mW)

- B = MW, SW 3.9-12 Mc, Y = MW, SW 6-18 Mc: see TR-710B and TR-710Y

- L (=with LW): see TFM-95 and TFM-95L

- T (=Three, Triple?) see TR-910T (MW, SW1 3-9 Mc, SW2 9-24 Mc) and TR-910 (MW, SW 3.9-12 Mc)

- W (=World, wide FM). See 2F-23 and 2F-23W. In Japan commercial FM band is at 75-95 MHz. The radio without the letter W is for domestic use, whereas the set with the letter W is for export use

- Y see above (B)