doubt | Miscellaneous › Others › doubt This topic has 1 reply, 2 voices, and was last updated 9 years, 11 months ago by Ashutosh Bhatt. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts May 9, 2014 at 10:03 am #3081 saksham soniParticipant Voltage boost by using a resistor with 78XX in this circuit, what specification of centered tape transformer are used???/ is this transformer should of fixed value??/ May 11, 2014 at 5:25 pm #11719 Ashutosh BhattParticipant transformer current ratings can be 500 mA, 750 mA, 1 A or more what do u mean by transformer value? Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In