6v pilot lamp

Trying to locate replacement bulbs for an old Wards / Airline transistor
radio, they are 6.3V
but only 20mA rated. Higher rated current lamps are out there, but in this
design they dim the bulb when you tune a station, so looks like they must be that
rating, which also saves battery power.
I thought an 1175 lamp would do but the current is wrong. It has to be a T5
screw type
socket. Could not locate a bulb number for it...any ideas?
This is a pic.  https://ibb.co/Bzxt7mb
The front bulb is what came out of the radio 6.3v 20mA. The back one is a
type 47, 6-8v 100mA way to big.